Removes 1 or more subscriptions.
You can unsubscribe in 3 ways:
subscriptionId: removes a single subscription.channel: removes all subscriptions to that channel or resource.When the last subscription on a connection is removed, the connection closes automatically.
Unsubscribe details. You must specify channel, subscriptionId, or both.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.