Webresponse - Botguard Javascript

I have a javascript code that simulates a youtube subscribe request. With Fetch, youtube subscribes by sending a subscribe request. But there are shortcomings. Youtube sends 3 requests while subscribing. One is subscriberkey, the other is getkey and the other is logkey. We simulated all of them, but there is a section called webresponse in the logkey. We couldn't do it. As a result of the getkey request, it gives something called botguardprogram. It converts it in itself and prints it as webresponse in logkey request. I'm looking for someone who can convert botguard to webresponse.