{
  "error": {
    "errorId": "TransactionRequestIdempotencyKeyAlreadyExists",
    "description": "Transaction request already exists with idempotency key 'IDEMPOTENCY_KEY'.",
    "paymentId": "6gHJtooK6",
    "paymentStatus": "SETTLED",
    "diagnosticsId": "1234567898",
    "validationErrors": []
  }
}