Add fiat account Webhook

Add fiat account webhook example

referenceId: Unique Id received from /bank/addFiatAccountUrl

customerId: Unique Id received from /kyc/url

fiatAccountId: Unique Id received from fiatAccountWebhook and also returns from fiatAccounts endpoint after successful addition of fiat account.

• SUCCESS

{
   "referenceId":"6214fc3b011d9e3efb8c36b8fd29dfcs",
   "eventType":"fiatAccount",
   "status":"SUCCESS",
   "metadata":{
     "bankName":"Emirates NBD",
     "customerId":"xT2BksdOp2_234",
     "fiatAccountId":"c0dd3b80swb3cbbd8b333af1acbc77c9",
     "bankAccount":"--bank-account-number--"
   }
}