SELECT 
  * 
FROM 
  cscart_user_profiles 
WHERE 
  user_id = 74269 
  AND profile_type = 'P'

Query time 0.00028

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.10"
    },
    "table": {
      "table_name": "cscart_user_profiles",
      "access_type": "ref",
      "possible_keys": [
        "uid_p",
        "profile_type"
      ],
      "key": "uid_p",
      "used_key_parts": [
        "user_id",
        "profile_type"
      ],
      "key_length": "6",
      "ref": [
        "const",
        "const"
      ],
      "rows_examined_per_scan": 1,
      "rows_produced_per_join": 1,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "1.00",
        "eval_cost": "0.10",
        "prefix_cost": "1.10",
        "data_read_per_join": "7K"
      },
      "used_columns": [
        "profile_id",
        "user_id",
        "profile_type",
        "b_firstname",
        "b_lastname",
        "b_address",
        "b_address_2",
        "b_city",
        "b_county",
        "b_state",
        "b_country",
        "b_zipcode",
        "b_phone",
        "s_firstname",
        "s_lastname",
        "s_address",
        "s_address_2",
        "s_city",
        "s_county",
        "s_state",
        "s_country",
        "s_zipcode",
        "s_phone",
        "s_address_type",
        "profile_name",
        "profile_update_timestamp"
      ]
    }
  }
}