{
  "paymentId": "0f3597ed-8855-5dff-9750-e0d199b0a7ac",
  "fromAccount": "ACC-1001",
  "toAccount": "ACC-2002",
  "amount": "12.345",
  "date": "2026-10-31T12:00:00+03:00",
  "purpose": "Sample transfer 077",
  "unexpected": "value"
}