Viber webhook is not recieving events

Hello.

I found some posts about asking to disable proxying for specific url or src addresses.
In my case i faced a problem that when CF proxy is on for domain my viber webhook url notrecieving any requests from them.

So i need to somehow disable proxy for that url or ips.
how can it be done?
I tried with rules to “disable all” for url but still no result.