Does "Mark tickets as unread" work only for connected user via API?

We would like to mark a ticket as unread every time certain conditions apply. We are identifying those conditions through a flow in Zoho Flow, and an action in it which calls the Zoho Desk API Mark as unread.

According to the documentation, it marks the ticket as "unread by the user", without it allowing to specify which user. The tests that we have made seem to prove that it is the user making the API call that the ticket is marked for. However, we need to mark it unread for a set of people, all part of a work team.

Is it possible?

Thank you!