SELECT 
  name, 
  path 
FROM 
  cscart_seo_names 
WHERE 
  `object_id` = 0 
  AND `type` = 's' 
  AND `dispatch` = 'promotions.list' 
  AND `lang_code` = 'en'

Query time 0.00082

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "32.27"
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "ALL",
      "rows_examined_per_scan": 309,
      "rows_produced_per_join": 0,
      "filtered": "0.32",
      "cost_info": {
        "read_cost": "32.17",
        "eval_cost": "0.10",
        "prefix_cost": "32.27",
        "data_read_per_join": "1K"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "dispatch",
        "path",
        "lang_code"
      ],
      "attached_condition": "((`mobikul_delivery_boy_livedemo`.`cscart_seo_names`.`object_id` = 0) and (`mobikul_delivery_boy_livedemo`.`cscart_seo_names`.`type` = 's') and (`mobikul_delivery_boy_livedemo`.`cscart_seo_names`.`dispatch` = 'promotions.list') and (`mobikul_delivery_boy_livedemo`.`cscart_seo_names`.`lang_code` = 'en'))"
    }
  }
}