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| Action | Intended User | URI | Method | Request Params | Request Body | Response Body | |
|---|---|---|---|---|---|---|---|
| 1 | subscribe to a topic | Synapse users who has READ permission on the object | /subscriptionssubscription | POST | Subscription | Subscription | |
| 2 | retrieve subscriptions for a list of topics | Synapse users | /subscriptionssubscription | PUTPOST | List<Topic> | SubscriptionPage | |
| 3 | unsubscribe to a topic | Synapse users who subscribed to the object | /subscriptions/unsubscribesubscription/{objectId}/type/{objectTypesubscriptionId} | DELETE | |||