How to subscribe a device instance to update its telemetry data?

Question

Spring

I need help with the idea of ​​iot telemetry data architecture (I don’t know how it’s done in real life, and I’m afraid to fantasize a lot):
In the spring boot application, I have to create a new device (from a template, for example). In essence, there is an array of telemetry data objects: you need to receive relevant data from the sensor and constantly update this field from the device saved in the database.

Sketch:
1. I create a device (there is a sample of the device type, for example)
2. I set it to "enabled ON" and "subscribed TRUE"
3. I save it to the database.
4. I make a trigger for some job so that it goes and adds a Kafka topic to this device for recording (is it possible to do this and how to do it is a question)
5. Next, Kafka reads all messages from the general topic in batches (payload for each: device_id, data) and updates the entity in the database for each of the received device_id.
6. If the client presses "disable the device", then I make it enabled - off, subscribed - false in the database and run a job that will cancel the sensor's entry into the general Kafka topic (how to programmatically turn off the sensor in real life - I can't find it anywhere)

Sorry for the stream of consciousness, but I have no experience with such systems, I improvise. I would be very grateful for your advice