Example of the Source Object

"source": {
     "user_principal_name": "...",
     "down_level_logon_name": "...",
     "sam_account_name": "...",
     "distinguished_name": "...",
     "user_email_address": "...",       
     "host_ips": ["...", "..."],
     "host_name": "...",
     "user_agent": "...",
     "host_domain": "..."
 }