SELECT 
  feature_id 
FROM 
  cscart_product_features 
WHERE 
  feature_id IN (
    1042, 1022, 1036, 1061, 1033, 1053, 1028, 
    1052, 1056, 1062, 1063, 1023, 1044, 
    1048, 1068, 1029, 1030, 1051, 1031
  ) 
  AND feature_type = 'E'

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "35.13"
    },
    "table": {
      "table_name": "cscart_product_features",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 148,
      "rows_produced_per_join": 1,
      "filtered": "1.28",
      "cost_info": {
        "read_cost": "34.75",
        "eval_cost": "0.38",
        "prefix_cost": "35.13",
        "data_read_per_join": "2K"
      },
      "used_columns": [
        "feature_id",
        "feature_type"
      ],
      "attached_condition": "((`danishecarter_latest`.`cscart_product_features`.`feature_id` in (1042,1022,1036,1061,1033,1053,1028,1052,1056,1062,1063,1023,1044,1048,1068,1029,1030,1051,1031)) and (`danishecarter_latest`.`cscart_product_features`.`feature_type` = 'E'))"
    }
  }
}