curl --location --request POST 'https://prod.your-api-server.com/api/v1/payouts/fiat/initiate' \
--header 'Content-Type: application/json' \
--data-raw '{
"beneficiaryFirstName": "Juan",
"beneficiaryLastName": "Pérez",
"documentType": "1",
"documentNumber": "12345678",
"email": "juan.perez@example.com",
"phone": "+541112345678",
"gender": "male",
"country": "AR",
"city": "Buenos Aires",
"address": "Calle Falsa 123",
"currencyCode": "ARS",
"amount": 5000,
"notificationUrl": "https://merchant.com/payout/callback",
"payoutChannel": "ONLINE",
"accountNumber": "2850590940090418135201",
"bankName": "-",
"payoutAccountTypeCode": "-",
"externalReference": "txn_abc_001",
"paymentReason": "Order refund",
"testMode": true
}'