The type of event that will trigger the subscription.
1 = IncomingPaymentProcessed
2 = OutgoingPaymentRejected
3 = OutgoingPaymentProcessed
4 = MissingFunding
5 = Reversed
6 = OutgoingPaymentBooked
7 = PaymentRouting
8 = IncomingPaymentBooked
9 = AccountHolderVerification
10 = OutgoingDirectDebitPendingProcessing
11 = CaseEvents
12 = AgencyBankingWhitelistResult