403 forbidden error when pass user_id to Intercom in React app [closed]

I already have Intercom workspace, and I want to integrate Intercom for my React app. I use @Intercom/messenger-js-sdk and when I call boot() or Intercom() with app_id only - it is working good, but when I also pass user_id - I have 403 error. Also important to mention that I'm 100% sure that for now I do not turn on messenger security and I don't have a domain whitelist, so problem is not there in my case. As I see, when in request payload formdata exist user_data with some custom properties inside (user_id, email, user_name, etc.) - I get a 403.

Any ideas?