Optional registration ID to filter results, If registrationId is not provided, returns an array of all registrations ordered by updated_at timestamp in descending order.
Example:28e5d78c-d642-42d1-8064-0082dc87c4e5
UUID of the subscriber, for Admins only
Determines which page of registrations to retrieve
Default:1
>= 1
Number of records per page
Default:10
>= 1<= 20