curl --location --request POST '/payment' \
--header 'paymentType: PER_TRANSFER' \
--header 'Content-Type: application/json' \
--data-raw '{
"merNo": 111111,
"merOrderNo": "222222",
"currencyCode": "USD",
"sourceAmount": "100.05",
"returnUrl": "https://example.com",
"notifyUrl": "https://example.com/notify",
"sign": "906FDF4880B00B00281F2AB61AE9A721",
"ipAddress": "192.168.1.1",
"version": "V3.0.0",
"userId": "123421",
"email": "test@test.com",
"userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36",
"billingFirstName": "John",
"billingLastName": "Doe",
"billingPhone": "123456789",
"billingEmail": "test@test.com",
"customerIdentificationType": "00",
"customerIdentification": "123456789"
}'