{
  "id": "user-123",
  "path": "/user/supervisor/worker-1",
  "behavior": "UserSessionBehavior",
  "status": "active",
  "mailboxSize": 3,
  "supervisorId": "supervisor-pool-1",
  "spawnedAt": "2026-04-19T10:00:00Z",
  "lastMessageAt": "2026-04-19T10:00:00Z",
  "messageCount": 1024,
  "restartCount": 0
}