TransactionInitializeRequest

{
    "amount": 0,
    "fullName": "string",
    "transactionType": "string",
    "transactionExtraData1": "string",
    "transactionExtraData2": "string",
    "transactionExtraData3": "string",
    "email": "string",
    "callbackUrl": "string",
    "currency": "string"
}