Manage subscriptions set for event callbacks. These could include listing subscriptions set for the user, deleting subscriptions, etc.
Note, that a Callback will be sent only when the event occurs. In some cases this may take a long time, in others it may never even happen. This is not up to Crypto APIs.
It is important to note that in order to set a valid and working Callback subscription, the domain for the Callback URL must be first verified.
To see more information on Callbacks and how they operate, please see our dedicated documentation.