/usr/share/dbus-1/services/org.freedesktop.mate.Notifications.service is in mate-notification-daemon 1.8.1-3.
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.freedesktop.Notifications
Exec=/usr/lib/mate-notification-daemon/mate-notification-daemon
|