I have installed Zabbix agent 2 and Mongo DB in another server which is listening to port 27017. I am able to see that Zabbix agent is live from the Mongo DB server on Zabbix dashboard, however there's no live data which gets populated from Mongo DB. Screenshots attached.

Commandline execution status:

zabbix_get -s <IP> -k 'mongodb.ping["tcp://<ip>:27017","zabbix_user","zabbix_pwd"]"'
ZBX_NOTSUPPORTED: Invalid item key format.

Not sure what's wrong here. I am not able to see anything in the log file whether it is zabbix_server or zabbix_agent.