post
https://use.apilookup.for.a.base.url/stream/v2/layers//subscribe
Enables message consumption from a specific stream layer (topic). Use the base path returned from the API Lookup service. Note: For mode = parallel, one unit of parallelism currently equals 1 MBps inbound or 2 MBps outbound, whichever is greater, rounded up to the nearest integer. The number of subscriptions within the same group cannot exceed the parallelism allowed. For more details see Get Data from a Stream Layer.