Abstract: Disclosed are some implementations of systems, apparatus, methods and computer program products for implementing a bi-level subscription process. A server computing device subscribes to a global topic. The server computing device receives a discovery message published to the global topic, where the discovery message specifies an instance name, a data center, and an instance URL. The server computing device subscribes to a regional topic having the instance name. The server computing device receives a metadata message published to the regional topic having the instance name, where the metadata message includes a tenant identifier, source information pertaining to a source from which events are to be obtained, and destination information pertaining to a destination via which the events are to be transmitted. The server computing device stores the source information and destination information in association with the tenant identifier, obtains events from the source and transmits the events to the destination.