I'm trying to implement realtime notifications on a dynamic layout by subscribing it to a channel and in my callback action I want to run an activity. Inside the activity I want to access the properties being published. I'm publishing pyID and other properties to the channel but don't know how to read the published message within the callback activity. I'm able to do successfully subscribe and receive notifications but cannot read the details of the message. Below article does not illustrate how we can access the published message from a callback action and I think without accessing the message the use of this functionality will be highly limited. Any help will be highly appreciated.