Indicate to Presence that a device has left a channel/channels.
Your app's subscribe key from Admin Portal.
The channel name to perform the operation on. In the context of Presence, this parameter relates to a channel for which the new state will be applied or the existing state will be returned. Verify that channels are comprised of valid characters. You can use a single channel or multiple channels separated by a comma.
Comma-separated list of channel group names to perform the operation on. In the context of Presence, this parameter relates to channel group name(s) to which you subscribe. You may subscribe to channels, channels and channel groups, or just channel groups.
String which is either the auth key (PAM v2) or a valid token (Access Manager) used to authorize the operation if access control is enabled.
The JSONP callback name to wrap the function in.
A UTF-8 encoded string of up to 64 characters used to identify the client.
Signature used to verify that the request was signed with the secret key associated with the subscribe key.
If Access Manager is enabled, either a valid authorization token or a signature are required. Check Access Manager documentation for details on how to compute the signature.
Unix epoch timestamp used as a nonce for signature computation. Must have no more than ± 60 seconds offset from NTP.