curl --request PATCH \
  --url http://localhost:8080/cabinet/admin/promocodes/{promocode_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "<string>",
  "type": "balance",
  "balance_bonus_kopeks": 123,
  "subscription_days": 123,
  "max_uses": 1,
  "valid_from": "2023-11-07T05:31:56Z",
  "valid_until": "2023-11-07T05:31:56Z",
  "is_active": true,
  "first_purchase_only": true,
  "promo_group_id": 123
}
'

{
  "id": 123,
  "code": "<string>",
  "type": "balance",
  "balance_bonus_kopeks": 123,
  "balance_bonus_rubles": 123,
  "subscription_days": 123,
  "max_uses": 123,
  "current_uses": 123,
  "uses_left": 123,
  "is_active": true,
  "is_valid": true,
  "first_purchase_only": true,
  "valid_from": "2023-11-07T05:31:56Z",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "valid_until": "2023-11-07T05:31:56Z",
  "promo_group_id": 123,
  "created_by": 123
}