curl --request GET \
  --url https://api.dintero.com/v2/accounts/{aid}/payout/payout-destinations/{payout_destination_id}/balances \
  --header 'Authorization: Bearer <token>'

{
  "payout_destination_balances": [
    {
      "account_id": "<string>",
      "payout_destination_config_id": "<string>",
      "payout_destination_id": "<string>",
      "currency": "<string>",
      "amount": 123
    }
  ]
}