Optionalactive_OptionalexpandSpecifies which fields in the response should be expanded.
Optionalexpires_If set, the registration stops being active at this time. If not set, the registration will be active indefinitely. It can be either now to indicate the current time, or a timestamp measured in seconds since the Unix epoch.
Time at which the registration becomes active. It can be either
nowto indicate the current time, or a timestamp measured in seconds since the Unix epoch.