Qt Harmattan N9 Aegis Manifest File in deb archive

Question

I have made an aegis manifest file following way, but it does not seem to be working. My application still complains about unprivileged access to tracker when I try to read/write. What I am doing wrong here?

The deb file content are following

_aegis  control.tar.gz  data.tar.gz  debian-binary

_aegis file contents follows.

<aegis>
    <request policy="add">
        <credential name="TrackerReadAccess" />
        <for path="/opt/MyApp/bin/MyApp" />
   </request>
   <request policy="add">
       <credential name="TrackerWriteAccess" />
       <for path="/opt/MyApp/bin/MyApp" />
  </request>
  <request policy="add">
        <credential name="GRP::metadata-users" />
        <for path="/opt/MyApp/bin/MyApp" />
  </request>
</aegis>

Then inside control.tar.gz in control file I have the definition

Aegis-Manifest: included

So what goes wrong here?