TransactionResultNotification

{
    "env": "alpha",
    "id": "string",
    "state": "string",
    "payment_state": "string",
    "plate_number": "string",
    "invoice_no": "string",
    "transaction_type": "string",
    "request_amount": "string",
    "paid_at": "2019-08-24T14:15:22.123Z",
    "refund_state": "string",
    "refunded_at": "2019-08-24T14:15:22.123Z",
    "payment_method": "credit_card"
}