Get channel unread count by api

I call
And it response only userMarkers with unreadCount : 1
But userEntityMarkers is empty and i cant match which chat has unreadCount = 1

Can you help how to find unreadCount for chat, by api ?
I cant find any documentation how to work with api (

Hello @IgoTs From your question, we suggest you try using the following API: User Marker API.

If you need any further assistance, please feel free to reach out.