SELECT 
  * 
FROM 
  ath_category_faq_field_group 
WHERE 
  object_id = 242 
  AND type = 'V' 
ORDER BY 
  group_id

Query time 0.00060

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "2.45"
    },
    "ordering_operation": {
      "using_filesort": true,
      "table": {
        "table_name": "ath_category_faq_field_group",
        "access_type": "ref",
        "possible_keys": [
          "object_type"
        ],
        "key": "object_type",
        "used_key_parts": [
          "object_id",
          "type"
        ],
        "key_length": "6",
        "ref": [
          "const",
          "const"
        ],
        "rows_examined_per_scan": 7,
        "rows_produced_per_join": 7,
        "filtered": "100.00",
        "cost_info": {
          "read_cost": "1.75",
          "eval_cost": "0.70",
          "prefix_cost": "2.45",
          "data_read_per_join": "168"
        },
        "used_columns": [
          "group_id",
          "object_id",
          "type",
          "data"
        ]
      }
    }
  }
}