Get the hang of dbus-monitor command from dbus debian package

$dbus-monitor --session --profile | tee dbus-monitor-profile.txt
#type	timestamp	serial	sender	destination	path	interface	member
#					in_reply_to
sig	1542567372.723960	2	org.freedesktop.DBus	:1.3693	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
sig	1542567372.723980	4	org.freedesktop.DBus	:1.3693	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567373.088315	5	org.freedesktop.DBus	:1.3692	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567373.088350	3737	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567373.088364	6	org.freedesktop.DBus	:1.3692	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567373.088377	7254	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
mc	1542567373.447784	1	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	Hello
mr	1542567373.447814	1	org.freedesktop.DBus	:1.3694	1
sig	1542567373.447825	7255	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567373.447835	2	org.freedesktop.DBus	:1.3694	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
mc	1542567373.451542	2	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567373.451576	3	org.freedesktop.DBus	:1.3694	2
mc	1542567373.451733	3	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567373.451750	4	org.freedesktop.DBus	:1.3694	3
mc	1542567373.452108	4	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567373.452125	5	org.freedesktop.DBus	:1.3694	4
mc	1542567373.452328	5	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	StartServiceByName
mr	1542567373.452344	6	org.freedesktop.DBus	:1.3694	5
mc	1542567373.453509	6	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	GetNameOwner
mr	1542567373.453527	7	org.freedesktop.DBus	:1.3694	6
mc	1542567373.454872	7	:1.3694	:1.11	/org/gtk/vfs/mounttracker	org.gtk.vfs.MountTracker	ListMountableInfo
mr	1542567373.454893	3626	:1.11	:1.3694	7
mc	1542567373.456695	8	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	RemoveMatch
mr	1542567373.456713	8	org.freedesktop.DBus	:1.3694	8
mc	1542567373.456905	9	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567373.456921	9	org.freedesktop.DBus	:1.3694	9
mc	1542567373.459070	10	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	RequestName
sig	1542567373.459106	10	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567373.459122	11	org.freedesktop.DBus	:1.3694	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
mr	1542567373.459136	12	org.freedesktop.DBus	:1.3694	10
mc	1542567373.724274	11	:1.3694	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567373.724303	13	org.freedesktop.DBus	:1.3694	11
sig	1542567376.348823	7	org.freedesktop.DBus	:1.3694	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567376.348857	3738	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567376.348869	8	org.freedesktop.DBus	:1.3694	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567376.348879	7256	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
mc	1542567376.694978	1	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	Hello
mr	1542567376.695006	1	org.freedesktop.DBus	:1.3695	1
sig	1542567376.695017	7257	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567376.695027	2	org.freedesktop.DBus	:1.3695	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
mc	1542567376.697336	2	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567376.697363	3	org.freedesktop.DBus	:1.3695	2
mc	1542567376.698034	3	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	StartServiceByName
mr	1542567376.698087	4	org.freedesktop.DBus	:1.3695	3
mc	1542567376.698483	4	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567376.698500	5	org.freedesktop.DBus	:1.3695	4
mc	1542567376.698861	5	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567376.698877	6	org.freedesktop.DBus	:1.3695	5
mc	1542567376.699476	6	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	GetNameOwner
mr	1542567376.699494	7	org.freedesktop.DBus	:1.3695	6
mc	1542567376.700365	7	:1.3695	:1.11	/org/gtk/vfs/mounttracker	org.gtk.vfs.MountTracker	ListMountableInfo
mr	1542567376.701865	3627	:1.11	:1.3695	7
mc	1542567376.703862	8	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	RemoveMatch
mr	1542567376.703888	8	org.freedesktop.DBus	:1.3695	8
mc	1542567376.704263	9	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567376.704280	9	org.freedesktop.DBus	:1.3695	9
mc	1542567376.705640	10	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	RequestName
sig	1542567376.705667	10	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567376.705678	11	org.freedesktop.DBus	:1.3695	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
mr	1542567376.705688	12	org.freedesktop.DBus	:1.3695	10
mc	1542567376.936982	11	:1.3695	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567376.937010	13	org.freedesktop.DBus	:1.3695	11
sig	1542567379.255115	9	org.freedesktop.DBus	:1.3695	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567379.255151	3739	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567379.255163	10	org.freedesktop.DBus	:1.3695	/org/freedesktop/DBus	org.freedesktop.DBus	NameLost
sig	1542567379.255173	7258	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
mc	1542567379.448196	1	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	Hello
mr	1542567379.448227	1	org.freedesktop.DBus	:1.3696	1
sig	1542567379.448238	7259	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567379.448249	2	org.freedesktop.DBus	:1.3696	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
mc	1542567379.465578	2	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567379.465614	3	org.freedesktop.DBus	:1.3696	2
mc	1542567379.467392	3	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567379.467426	4	org.freedesktop.DBus	:1.3696	3
mc	1542567379.468500	4	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567379.468525	5	org.freedesktop.DBus	:1.3696	4
mc	1542567379.469053	5	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	StartServiceByName
mr	1542567379.469072	6	org.freedesktop.DBus	:1.3696	5
mc	1542567379.471752	6	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	GetNameOwner
mr	1542567379.471791	7	org.freedesktop.DBus	:1.3696	6
mc	1542567379.473297	7	:1.3696	:1.11	/org/gtk/vfs/mounttracker	org.gtk.vfs.MountTracker	ListMountableInfo
mr	1542567379.474350	3628	:1.11	:1.3696	7
mc	1542567379.477282	8	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	RemoveMatch
mr	1542567379.477321	8	org.freedesktop.DBus	:1.3696	8
mc	1542567379.477781	9	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567379.477799	9	org.freedesktop.DBus	:1.3696	9
mc	1542567379.478799	10	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	RequestName
sig	1542567379.478826	10	org.freedesktop.DBus	<none>	/org/freedesktop/DBus	org.freedesktop.DBus	NameOwnerChanged
sig	1542567379.478838	11	org.freedesktop.DBus	:1.3696	/org/freedesktop/DBus	org.freedesktop.DBus	NameAcquired
mr	1542567379.478848	12	org.freedesktop.DBus	:1.3696	10
mc	1542567379.739670	11	:1.3696	org.freedesktop.DBus	/org/freedesktop/DBus	org.freedesktop.DBus	AddMatch
mr	1542567379.739707	13	org.freedesktop.DBus	:1.3696	11