laravel create multiple sessions

I am developing laravel 5.1 project.this is for backend and for the api. the api is used by several interfaces as following diagram(c1, c2).all these interfaces authenticated by this api.

those are differentiate with the parameters you send.that means for c1,

{"username":"user","password":"password","brand":"c1"}

and for c2,

{"username":"user","password":"password","brand":"c1"}

lets say a user has accounts with same identical information(same username and passwords are used on both platforms) on c1,c2 platform. so when authenticating this user on c1 with laravel's Auth::loginUsingId function it creates session. then if i try to log in c2, successfully login to c2. but automatically logs out from c1. for this matter i need to have multiple sessions in my project. how can I do this?

via Chebli Mohamed