dbus-monitor output

signal sender=org.freedesktop.DBus -> dest=(null destination) serial=23 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameOwnerChanged
   string ":1.138"
   string ""
   string ":1.138"
method call sender=:1.138 -> dest=org.freedesktop.DBus serial=1 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=Hello
method call sender=:1.138 -> dest=org.freedesktop.DBus serial=2 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',interface='ca.desrt.dconf.Writer',path='/ca/desrt/dconf/Writer/user',arg0path='/org/gnome/desktop/a11y/applications/'"
method call sender=:1.138 -> dest=ca.desrt.dconf serial=3 path=/ca/desrt/dconf/Writer/user; interface=ca.desrt.dconf.Writer; member=Write
   string "/org/gnome/desktop/a11y/applications/screen-reader-enabled"
   array [
      variant          boolean false
   ]
method return sender=:1.38 -> dest=:1.138 reply_serial=3
   string "19:1.38"
signal sender=:1.38 -> dest=(null destination) serial=42 path=/ca/desrt/dconf/Writer/user; interface=ca.desrt.dconf.Writer; member=Notify
   string "/org/gnome/desktop/a11y/applications/screen-reader-enabled"
   array [
   ]
   string "19:1.38"
signal sender=org.freedesktop.DBus -> dest=(null destination) serial=24 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameOwnerChanged
   string ":1.138"
   string ":1.138"
   string ""
method call sender=:1.28 -> dest=ca.desrt.dconf serial=143 path=/ca/desrt/dconf/Writer/user; interface=ca.desrt.dconf.Writer; member=Write
   string "/org/gnome/desktop/interface/toolkit-accessibility"
   array [
      variant          boolean false
   ]
method return sender=:1.38 -> dest=:1.28 reply_serial=143
   string "20:1.38"
signal sender=:1.38 -> dest=(null destination) serial=44 path=/ca/desrt/dconf/Writer/user; interface=ca.desrt.dconf.Writer; member=Notify
   string "/org/gnome/desktop/interface/toolkit-accessibility"
   array [
   ]
   string "20:1.38"