Using my telegram bot to reset a problem in HA

I’m not sure what you mean by “resets an entity state”, but if you can do it in an HA automation, it can be triggered by a telegram message.

In my own setup, I have the telegram bot send me an inline keyboard with a few buttons to click to reply with, then use event_type: telegram_callback to respond.

I believe this is the original thread that got me started with the basics: