# SpeechToTextApiV30.WebHookPropertiesUpdate

## Properties
Name | Type | Description | Notes
------------ | ------------- | ------------- | -------------
**secret** | **String** | A secret that will be used to create a SHA256 hash of the payload with the secret as HMAC key.  This hash will be set as X-MicrosoftSpeechServices-Signature header when calling back into the registered URL. | [optional]