curl --request POST \
  --url https://api.bullring.finance/v1/ramp/{subaccountId}/banking/recipients \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "currency": "BRL",
  "pix_key": "71719844194"
}'

{
  "id": "0bf68a2a-72e1-4846-82a6-c9023efd9907",
  "account_owner_name": "Hugo Gonzalez",
  "active": true,
  "currency": "BRL",
  "is_verified": false,
  "account_id": "667.136.083-96"
}