AUE_SSAUTHMECH

{
  "_event_score": 0,
  "header": {
    "event_id": 45030,
    "event_modifier": 0,
    "event_name": "AUE_ssauthmech",
    "time_milliseconds_offset": 338,
    "time_seconds_epoch": 1571152560,
    "version": 11
  },
  "host_info": {
    "host_name": "Dan_macbook_pro",
    "host_uuid": "3F6E4B3A-9285-4E7E-9A0C-C3B62DC379DF",
    "osversion": "Version 10.15 (Build 19A582a)",
    "primary_mac_address": "38:f9:e8:15:5a:82",
    "serial_number": "C03XY889JHG3"
  },
  "identity": {
    "cd_hash": "64e8691427f6128ba9aae0cb29739414282f1009",
    "signer_id": "com.apple.authd",
    "signer_id_truncated": 0,
    "signer_type": 1,
    "team_id": "",
    "team_id_truncated": 0
  },
  "return": {
    "description": "success",
    "error": 0,
    "return_value": 0
  },
  "subject": {
    "audit_id": 502,
    "audit_user_name": "dan",
    "effective_group_id": 20,
    "effective_group_name": "staff",
    "effective_user_id": 502,
    "effective_user_name": "dan",
    "group_id": 20,
    "group_name": "staff",
    "process_hash": "BD94C0345A8F7D010D9EBE611F1CB347ECC4ADD5",
    "process_id": 806,
    "process_name": "/System/Library/CoreServices/Finder.app/Contents/MacOS/Finder",
    "session_id": 100007,
    "terminal_id": {
      "addr": [
        0
      ],
      "ip_address": "0.0.0.0",
      "port": 1871,
      "type": 0
    },
    "user_id": 502,
    "user_name": "dan"
  },
  "texts": [
    "com.apple.desktopservices",
    "mechanism PKINITMechanism:auth,privileged"
  ]
}