tula- sorry to hear about your camera
The only people who could help in this instance are the manchester groundstaff, as they are the people who would have performed the security check, lost and found checks, and cleaning checks after 019 landed. From experience, manchester groundstaff have always been exceptionally helpful... who did you speak to?
If the camera was found, it will have been left with the lost property of emirates' ground handling agent, swissport, at the airport. Try asking for the co-ordinator of swissport, or the emirates representative at check-in.... the ground staff who is dressed in the same way as the cabin crew.
Good luck!