/usr/share/dbus-1/services/org.gna.home.a2jmidid.service is in a2jmidid 8~dfsg0-1.
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.gna.home.a2jmidid
Exec=/usr/bin/a2jmidid dbus
|