curl --request GET \
  --url http://localhost:8080/partners/referrers/{user_id}/stats/top-referrals

{
  "items": [
    {
      "id": 123,
      "full_name": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "has_made_first_topup": true,
      "is_active": true,
      "total_earnings_kopeks": 123,
      "telegram_id": 123,
      "username": "<string>",
      "first_name": "<string>",
      "last_name": "<string>"
    }
  ],
  "user_id": 123
}