monitor will print the received events for:
UDEV - the event which udev sends out after rule processing

UDEV  [101.391337] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6 (usb)
ACTION=add
BUSNUM=005
DEVNAME=/dev/bus/usb/005/003
DEVNUM=003
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6
DEVTYPE=usb_device
ID_BUS=usb
ID_MODEL=USB_2.0_SATA_BRIDGE
ID_MODEL_ENC=USB\x202.0\x20\x20SATA\x20BRIDGE\x20\x20\x20
ID_MODEL_FROM_DATABASE=M6116 SATA Bridge
ID_MODEL_ID=6116
ID_REVISION=0160
ID_SERIAL=Super_Top_USB_2.0_SATA_BRIDGE_M6116018VF16
ID_SERIAL_SHORT=M6116018VF16
ID_USB_INTERFACES=:080650:
ID_VENDOR=Super_Top
ID_VENDOR_ENC=Super\x20Top\x20\x20\x20
ID_VENDOR_FROM_DATABASE=Super Top
ID_VENDOR_ID=14cd
MAJOR=189
MINOR=514
PRODUCT=14cd/6116/160
SEQNUM=1377
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=1331440

UDEV  [101.487756] add      /bus/usb/drivers/usb-storage (drivers)
ACTION=add
DEVPATH=/bus/usb/drivers/usb-storage
SEQNUM=1380
SUBSYSTEM=drivers
USEC_INITIALIZED=1480868

UDEV  [101.490830] add      /module/usb_storage (module)
ACTION=add
DEVPATH=/module/usb_storage
SEQNUM=1379
SUBSYSTEM=module
USEC_INITIALIZED=1480079

UDEV  [101.492449] add      /module/ums_cypress (module)
ACTION=add
DEVPATH=/module/ums_cypress
SEQNUM=1381
SUBSYSTEM=module
USEC_INITIALIZED=1484812

UDEV  [101.497884] add      /bus/usb/drivers/ums-cypress (drivers)
ACTION=add
DEVPATH=/bus/usb/drivers/ums-cypress
SEQNUM=1384
SUBSYSTEM=drivers
USEC_INITIALIZED=97335

UDEV  [101.498053] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0
DEVTYPE=usb_interface
ID_MODEL_FROM_DATABASE=M6116 SATA Bridge
ID_VENDOR_FROM_DATABASE=Super Top
INTERFACE=8/6/80
MODALIAS=usb:v14CDp6116d0160dc00dsc00dp00ic08isc06ip50in00
PRODUCT=14cd/6116/160
SEQNUM=1378
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=33392

UDEV  [101.499710] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4
DEVTYPE=scsi_host
SEQNUM=1382
SUBSYSTEM=scsi
USEC_INITIALIZED=97101

UDEV  [101.501756] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/scsi_host/host4 (scsi_host)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/scsi_host/host4
SEQNUM=1383
SUBSYSTEM=scsi_host
USEC_INITIALIZED=97225

UDEV  [102.542396] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0
DEVTYPE=scsi_target
SEQNUM=1385
SUBSYSTEM=scsi
USEC_INITIALIZED=41245

UDEV  [102.547687] add      /devices/virtual/bdi/8:16 (bdi)
ACTION=add
DEVPATH=/devices/virtual/bdi/8:16
SEQNUM=1390
SUBSYSTEM=bdi
USEC_INITIALIZED=46194

UDEV  [102.548967] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0 (scsi)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0
DEVTYPE=scsi_device
MODALIAS=scsi:t-0x00
SEQNUM=1386
SUBSYSTEM=scsi
USEC_INITIALIZED=41347

UDEV  [102.550860] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0
SEQNUM=1388
SUBSYSTEM=scsi_device
USEC_INITIALIZED=41401

UDEV  [102.552335] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg)
ACTION=add
DEVNAME=/dev/bsg/4:0:0:0
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0
MAJOR=252
MINOR=3
SEQNUM=1389
SUBSYSTEM=bsg
USEC_INITIALIZED=42749

UDEV  [102.553772] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0
SEQNUM=1387
SUBSYSTEM=scsi_disk
USEC_INITIALIZED=41376

UDEV  [102.881168] add      /devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/block/sdb (block)
ACTION=add
DEVLINKS=/dev/disk/by-id/ata-Hitachi_HTS547575A9E384_J2540054H042KE /dev/disk/by-id/wwn-0x5000cca644ce26d4 /dev/disk/by-path/pci-0000:00:10.4-usb-0:6:1.0-scsi-0:0:0:0
DEVNAME=/dev/sdb
DEVPATH=/devices/pci0000:00/0000:00:10.4/usb5/5-6/5-6:1.0/host4/target4:0:0/4:0:0:0/block/sdb
DEVTYPE=disk
ID_ATA=1
ID_ATA_DOWNLOAD_MICROCODE=1
ID_ATA_FEATURE_SET_APM=1
ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=128
ID_ATA_FEATURE_SET_APM_ENABLED=1
ID_ATA_FEATURE_SET_HPA=1
ID_ATA_FEATURE_SET_HPA_ENABLED=1
ID_ATA_FEATURE_SET_PM=1
ID_ATA_FEATURE_SET_PM_ENABLED=1
ID_ATA_FEATURE_SET_PUIS=1
ID_ATA_FEATURE_SET_PUIS_ENABLED=0
ID_ATA_FEATURE_SET_SECURITY=1
ID_ATA_FEATURE_SET_SECURITY_ENABLED=0
ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=186
ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=184
ID_ATA_FEATURE_SET_SMART=1
ID_ATA_FEATURE_SET_SMART_ENABLED=1
ID_ATA_ROTATION_RATE_RPM=5400
ID_ATA_SATA=1
ID_ATA_SATA_SIGNAL_RATE_GEN1=1
ID_ATA_SATA_SIGNAL_RATE_GEN2=1
ID_ATA_WRITE_CACHE=1
ID_ATA_WRITE_CACHE_ENABLED=1
ID_BUS=ata
ID_MODEL=Hitachi_HTS547575A9E384
ID_MODEL_ENC=Hitachi\x20HTS547575A9E384\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_PART_TABLE_TYPE=dos
ID_PATH=pci-0000:00:10.4-usb-0:6:1.0-scsi-0:0:0:0
ID_PATH_TAG=pci-0000_00_10_4-usb-0_6_1_0-scsi-0_0_0_0
ID_REVISION=JE4OA60A
ID_SERIAL=Hitachi_HTS547575A9E384_J2540054H042KE
ID_SERIAL_SHORT=J2540054H042KE
ID_TYPE=disk
ID_WWN=0x5000cca644ce26d4
ID_WWN_WITH_EXTENSION=0x5000cca644ce26d4
MAJOR=8
MINOR=16
SEQNUM=1391
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_ATA_SMART_IS_AVAILABLE=1
UDISKS_PARTITION_TABLE=1
UDISKS_PARTITION_TABLE_COUNT=2
UDISKS_PARTITION_TABLE_SCHEME=mbr
UDISKS_PRESENTATION_NOPOLICY=0
USEC_INITIALIZED=74519