SELECT 
  cscart_bm_snapping.grid_id as grid_id, 
  cscart_bm_snapping.block_id as block_id, 
  IFNULL(
    dynamic_object_content.content, 
    default_content.content
  ) as content, 
  IFNULL(
    dynamic_object_content.object_id, 
    default_content.object_id
  ) AS object_id, 
  IFNULL(
    dynamic_object_content.object_type, 
    default_content.object_type
  ) AS object_type, 
  cscart_bm_block_statuses.object_ids as object_ids, 
  cscart_bm_snapping.*, 
  cscart_bm_blocks.*, 
  cscart_bm_blocks_descriptions.* 
FROM 
  cscart_bm_snapping 
  LEFT JOIN cscart_bm_blocks ON cscart_bm_blocks.block_id = cscart_bm_snapping.block_id 
  LEFT JOIN cscart_bm_block_statuses ON cscart_bm_snapping.snapping_id = cscart_bm_block_statuses.snapping_id 
  AND cscart_bm_block_statuses.object_type LIKE '' 
  LEFT JOIN cscart_bm_blocks_descriptions ON cscart_bm_blocks.block_id = cscart_bm_blocks_descriptions.block_id 
  LEFT JOIN cscart_bm_blocks_content AS default_content ON cscart_bm_blocks.block_id = default_content.block_id 
  AND cscart_bm_blocks_descriptions.lang_code = default_content.lang_code 
  AND default_content.snapping_id = 0 
  AND default_content.object_id = 0 
  AND default_content.object_type like '' 
  LEFT JOIN cscart_bm_blocks_content AS dynamic_object_content ON cscart_bm_blocks.block_id = dynamic_object_content.block_id 
  AND cscart_bm_blocks_descriptions.lang_code = dynamic_object_content.lang_code 
  AND dynamic_object_content.object_id = 0 
  AND dynamic_object_content.object_type like '' 
WHERE 
  cscart_bm_snapping.grid_id IN (
    1, 2, 3, 943, 4, 945, 5, 947, 941, 6161, 
    6, 9, 10, 7238, 7241, 11, 7242, 14, 7228, 
    15, 7243, 12, 7244, 13, 7240, 7232, 7234, 
    7230, 7231, 7235, 7229, 16, 24, 6129, 
    27, 26, 20, 740, 739, 6131, 738, 21, 2739, 
    959, 957, 22, 955, 23, 28, 29, 30
  ) 
  AND cscart_bm_blocks_descriptions.lang_code = 'en' 
ORDER BY 
  cscart_bm_snapping.order, 
  cscart_bm_snapping.block_id

Query time 0.00200

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "410.89"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "194.59"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_bm_snapping",
            "access_type": "range",
            "possible_keys": [
              "grid_id"
            ],
            "key": "grid_id",
            "used_key_parts": [
              "grid_id"
            ],
            "key_length": "4",
            "rows_examined_per_scan": 66,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "index_condition": "(`aomnia_com`.`cscart_bm_snapping`.`grid_id` in (1,2,3,943,4,945,5,947,941,6161,6,9,10,7238,7241,11,7242,14,7228,15,7243,12,7244,13,7240,7232,7234,7230,7231,7235,7229,16,24,6129,27,26,20,740,739,6131,738,21,2739,959,957,22,955,23,28,29,30))",
            "cost_info": {
              "read_cost": "35.86",
              "eval_cost": "6.60",
              "prefix_cost": "42.46",
              "data_read_per_join": "51K"
            },
            "used_columns": [
              "snapping_id",
              "block_id",
              "grid_id",
              "wrapper",
              "user_class",
              "order",
              "status"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_bm_block_statuses",
            "access_type": "ref",
            "possible_keys": [
              "snapping_id"
            ],
            "key": "snapping_id",
            "used_key_parts": [
              "snapping_id"
            ],
            "key_length": "4",
            "ref": [
              "aomnia_com.cscart_bm_snapping.snapping_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "16.50",
              "eval_cost": "6.60",
              "prefix_cost": "65.56",
              "data_read_per_join": "7K"
            },
            "used_columns": [
              "snapping_id",
              "object_ids",
              "object_type"
            ],
            "attached_condition": "<if>(is_not_null_compl(cscart_bm_block_statuses), ((`aomnia_com`.`cscart_bm_snapping`.`snapping_id` = `aomnia_com`.`cscart_bm_block_statuses`.`snapping_id`) and (`aomnia_com`.`cscart_bm_block_statuses`.`object_type` like '')), true)"
          }
        },
        {
          "table": {
            "table_name": "cscart_bm_blocks",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id"
            ],
            "key_length": "4",
            "ref": [
              "aomnia_com.cscart_bm_snapping.block_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "16.50",
              "eval_cost": "6.60",
              "prefix_cost": "88.66",
              "data_read_per_join": "14K"
            },
            "used_columns": [
              "block_id",
              "type",
              "properties",
              "company_id",
              "storefront_id"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_bm_blocks_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id",
              "lang_code"
            ],
            "key_length": "10",
            "ref": [
              "aomnia_com.cscart_bm_snapping.block_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "16.50",
              "eval_cost": "6.60",
              "prefix_cost": "111.76",
              "data_read_per_join": "13K"
            },
            "used_columns": [
              "block_id",
              "lang_code",
              "name"
            ]
          }
        },
        {
          "table": {
            "table_name": "default_content",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id",
              "snapping_id",
              "lang_code",
              "object_id"
            ],
            "key_length": "18",
            "ref": [
              "aomnia_com.cscart_bm_snapping.block_id",
              "const",
              "aomnia_com.cscart_bm_blocks_descriptions.lang_code",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 66,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "26.16",
              "eval_cost": "6.60",
              "prefix_cost": "144.52",
              "data_read_per_join": "14K"
            },
            "used_columns": [
              "snapping_id",
              "object_id",
              "object_type",
              "block_id",
              "lang_code",
              "content"
            ],
            "attached_condition": "<if>(is_not_null_compl(default_content), (`aomnia_com`.`default_content`.`object_type` like ''), true)"
          }
        },
        {
          "table": {
            "table_name": "dynamic_object_content",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id"
            ],
            "key_length": "4",
            "ref": [
              "aomnia_com.cscart_bm_snapping.block_id"
            ],
            "rows_examined_per_scan": 2,
            "rows_produced_per_join": 194,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "52.32",
              "eval_cost": "19.46",
              "prefix_cost": "216.29",
              "data_read_per_join": "42K"
            },
            "used_columns": [
              "snapping_id",
              "object_id",
              "object_type",
              "block_id",
              "lang_code",
              "content"
            ],
            "attached_condition": "<if>(is_not_null_compl(dynamic_object_content), ((`aomnia_com`.`dynamic_object_content`.`object_id` = 0) and (`aomnia_com`.`dynamic_object_content`.`lang_code` = `aomnia_com`.`cscart_bm_blocks_descriptions`.`lang_code`) and (`aomnia_com`.`dynamic_object_content`.`object_type` like '')), true)"
          }
        }
      ]
    }
  }
}