/usr/share/dbus-1/services/org.gnome.Totem.service is in totem 3.26.0-0ubuntu6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [D-BUS Service]
Name=org.gnome.Totem
Exec=/usr/bin/totem --gapplication-service
|