SELECT 
  q_bm_snapping.grid_id as grid_id, 
  q_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, 
  q_bm_block_statuses.object_ids as object_ids, 
  q_bm_snapping.*, 
  q_bm_blocks.*, 
  q_bm_blocks_descriptions.* 
FROM 
  q_bm_snapping 
  LEFT JOIN q_bm_blocks ON q_bm_blocks.block_id = q_bm_snapping.block_id 
  LEFT JOIN q_bm_block_statuses ON q_bm_snapping.snapping_id = q_bm_block_statuses.snapping_id 
  AND q_bm_block_statuses.object_type LIKE '' 
  LEFT JOIN q_bm_blocks_descriptions ON q_bm_blocks.block_id = q_bm_blocks_descriptions.block_id 
  LEFT JOIN q_bm_blocks_content AS default_content ON q_bm_blocks.block_id = default_content.block_id 
  AND q_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 q_bm_blocks_content AS dynamic_object_content ON q_bm_blocks.block_id = dynamic_object_content.block_id 
  AND q_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 
  q_bm_snapping.grid_id IN (
    273, 276, 277, 278, 274, 275, 285, 290, 
    286, 287, 288, 289, 291, 292, 364, 365, 
    366, 367, 368, 369, 370
  ) 
  AND q_bm_blocks_descriptions.lang_code = 'en' 
ORDER BY 
  q_bm_snapping.order, 
  q_bm_snapping.block_id

Query time 0.00286

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "521.10"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "204.00"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "q_bm_snapping",
            "access_type": "range",
            "possible_keys": [
              "grid_id"
            ],
            "key": "grid_id",
            "used_key_parts": [
              "grid_id"
            ],
            "key_length": "4",
            "rows_examined_per_scan": 34,
            "rows_produced_per_join": 34,
            "filtered": "100.00",
            "index_condition": "(`portal`.`q_bm_snapping`.`grid_id` in (273,276,277,278,274,275,285,290,286,287,288,289,291,292,364,365,366,367,368,369,370))",
            "cost_info": {
              "read_cost": "61.81",
              "eval_cost": "6.80",
              "prefix_cost": "68.61",
              "data_read_per_join": "26K"
            },
            "used_columns": [
              "snapping_id",
              "block_id",
              "grid_id",
              "wrapper",
              "user_class",
              "order",
              "status"
            ]
          }
        },
        {
          "table": {
            "table_name": "q_bm_blocks",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id"
            ],
            "key_length": "4",
            "ref": [
              "portal.q_bm_snapping.block_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 34,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "34.00",
              "eval_cost": "6.80",
              "prefix_cost": "109.41",
              "data_read_per_join": "7K"
            },
            "used_columns": [
              "block_id",
              "type",
              "properties",
              "company_id",
              "abt__yt_banners_use",
              "abt__yt_banner_max_position",
              "storefront_id"
            ]
          }
        },
        {
          "table": {
            "table_name": "q_bm_blocks_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "block_id",
              "lang_code"
            ],
            "key_length": "10",
            "ref": [
              "portal.q_bm_snapping.block_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 34,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "34.00",
              "eval_cost": "6.80",
              "prefix_cost": "150.21",
              "data_read_per_join": "6K"
            },
            "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": [
              "portal.q_bm_snapping.block_id",
              "const",
              "portal.q_bm_blocks_descriptions.lang_code",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 34,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "34.00",
              "eval_cost": "6.80",
              "prefix_cost": "191.01",
              "data_read_per_join": "7K"
            },
            "used_columns": [
              "snapping_id",
              "object_id",
              "object_type",
              "block_id",
              "lang_code",
              "content"
            ],
            "attached_condition": "<if>(is_not_null_compl(default_content), (`portal`.`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": [
              "portal.q_bm_snapping.block_id"
            ],
            "rows_examined_per_scan": 2,
            "rows_produced_per_join": 68,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "68.00",
              "eval_cost": "13.60",
              "prefix_cost": "272.61",
              "data_read_per_join": "14K"
            },
            "used_columns": [
              "object_id",
              "object_type",
              "block_id",
              "lang_code",
              "content"
            ],
            "attached_condition": "<if>(is_not_null_compl(dynamic_object_content), ((`portal`.`dynamic_object_content`.`object_id` = 0) and (`portal`.`dynamic_object_content`.`lang_code` = `portal`.`q_bm_blocks_descriptions`.`lang_code`) and (`portal`.`dynamic_object_content`.`object_type` like '')), true)"
          }
        },
        {
          "table": {
            "table_name": "q_bm_block_statuses",
            "access_type": "ALL",
            "possible_keys": [
              "snapping_id"
            ],
            "rows_examined_per_scan": 3,
            "rows_produced_per_join": 204,
            "filtered": "100.00",
            "using_join_buffer": "Block Nested Loop",
            "cost_info": {
              "read_cost": "3.69",
              "eval_cost": "40.80",
              "prefix_cost": "317.10",
              "data_read_per_join": "23K"
            },
            "used_columns": [
              "snapping_id",
              "object_ids",
              "object_type"
            ],
            "attached_condition": "<if>(is_not_null_compl(q_bm_block_statuses), ((`portal`.`q_bm_snapping`.`snapping_id` = `portal`.`q_bm_block_statuses`.`snapping_id`) and (`portal`.`q_bm_block_statuses`.`object_type` like '')), true)"
          }
        }
      ]
    }
  }
}