Once we have our topic set up, we can click the Publish to topic button in the topic details and start creating a message. We can add a subject and the message body straight into the web interface. We also have the ability to select the message to be Raw (without formatting) or JSON-formatted:

Below the message body section, we also have the JSON message generator, which can help us create a message in the appropriate JSON format for each protocol:

With the JSON message generator, we can simply enter the message into the body and then select the targets that will receive the messages from the topic:

When the JSON format is generated, the window is populated with the appropriate metadata for each type of communication protocol and the format automatically changes to JSON:

We can now simply click Publish Message at the bottom of the dialog and the message will be push-delivered to the subscribers. As you can see, it is very simple to create a topic and a subscription, and post messages straight from the management console.