COLLAB_ events don't come from the Box

Hi everyone,

I need to monitor all events including any access changes bounded to folders under some admin account. I created an application with app user and registered it.
According documentation access can be changed via shared link creation or via operations with collaborators. But for collaborators changes I can catch only events bounded with app user not for all users who could be collaborators for my folders.

I tried to use EventLog, but it didn't help me.

Does any way exist for monitoring access list of my folders?

I'm using Box Java SDK for catching any events.

EventStream stream = new EventStream(connection);
String userId = BoxUser.getCurrentUser(connection).getID();
stream.addListener(new BoxListener());
stream.start();

public class BoxListener implements EventListener {
----------------------
public void onEvent(BoxEvent event) {
        BoxResource resource = event.getSourceInfo().getResource();
switch (event.getType()) {
------------------------------------
    }
}