How to get bot channel id from destination id in line messenger api

I am building something where I can have multiple bots using Line API and Laravel. I want to map user with the bot they follow.

For example I have two bots A and B, when user follows A I want to store it in my database that user followed A then, when user follows B I want it to be saved as user followed B. Now when user sends message I will send a reply based on the destination ID that Line API sends me.

via Chebli Mohamed