Authorizing an entity to access data in a service. A method includes, at a service, creating a subscription, for a subscriber entity, to notifications of events for data. The method further includes, at the service, determining that the subscriber entity is in an authorization state indicating that the subscriber entity is required to reauthorize to the service to continue receiving notifications of events for the data. The method further includes, as a result of determining that the subscriber entity is in an authorization state indicating that the subscriber entity is required to reauthorize to the service to continue receiving notifications of events for the data, publishing a reauthorization notification to the subscriber entity to reauthorize the subscription.