Filtering user change events

Is there a way to determine what triggered a user change event?  For instance, I would like to be able to only do something when a specific change is made to a user and ignore all other changes.  I can't seem to find anything exposed that would allow me to do something like that.  The code below is a sample of what I have with a TODO of what I am wanting to add.

public class MyListener implements UserModelListener {
    private final SBuildServer myBuildServer;

    public MyListener(SBuildServer sBuildServer) {

        myBuildServer = sBuildServer;
    }

    public void register(){
        myBuildServer.getUserModel().addListener(this);
    }

    public void userAccountCreated(@NotNull User user) {
        // do nothing
    }

    public void userAccountChanged(User user) {
        Loggers.SERVER.info("User " + user.getName() + " changed.");
        // TODO: only do something if the e-mail address changed.
    }

    public void userAccountRemoved(User user) {
        // do nothing
    }
}