/usr/share/dbus-1/services/org.gnome.SettingsDaemon.service is in gnome-settings-daemon 3.4.1-0ubuntu1.
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.SettingsDaemon
Exec=/usr/lib/gnome-settings-daemon/gnome-settings-daemon
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