How can I receive & send Data in Node-RED as JSON ... in a easy to understand way?

Sorry, last comment. you get ALL data because you subscribed to Module 22/# that means you will get Module 22/x and Module 22/sausage and Module 22/scoobydoobydoo etc.

What are you REALLY trying to do?


a better topic structure would be module/22/xxxxx this way you can subscribe to all modules module/# or a single module module/22/# or a specif topic of all modules module/+/temperature