This API is used to retrieve all subscriptions one has.
Target users: all Synapse users.
|- Limits the size of the page returned. For example, a page size of 10 require limit = 10. The maximum Limit for this call is 100.|
|- The index of the pagination offset. For a page size of 10, the first page would be at offset = 0, and the second page would be at offset = 10.|
|- User can use this param to filter the results by the type of object they subscribed to.|