System logs help

Jay123456789ww

Can anyone explain to me what the following logs mean please
dnsmasq-dhcp: sendLeaseMessageToESMD send to esmd buf = {\"ac\":\"add\",\"expire\":\"316625\",\"mac\":\"     ",\"ip\":\"    ",\"host\":\"*\",\"vendor\":\"udhcp 1.28.3\",\"moui\":\"*\",\"serial\":\"*\",\"pclass\":\"*\",\"cid\":\"       \",\"ifname\":\"br0\"}

The blanks are for sensitive info,

Bahar

2024-09-21 08:10:03	daemon	debug	dhcpd	dnsmasq-dhcp: sendLeaseMessageToESMD send to esmd buf = {\"ac\":\"add\",\"expire\":\"1993936\",\"mac\":\"d2:9d:0c:6e:07:c1\",\"ip\":\"192.168.1.177\",\"host\":\"*\",\"vendor\":\"*\",\"moui\":\"*\",\"serial\":\"*\",\"pclass\":\"*\",\"cid\":\"01:d2:9d:0c:6e:07:c1\",\"ifname\":\"br0\"}