Input for ConfirmSubscription action.
Disallows unauthenticated unsubscribes of the subscription. If the value of this
true and the request has an Amazon Web Services signature, then only the
topic owner and the subscription owner can unsubscribe the endpoint. The unsubscribe
action requires Amazon Web Services authentication.
Short-lived token sent to an endpoint during the
The ARN of the topic for which you wish to confirm a subscription.