{
  "id": "msg_1751990274130_8cq42ax3g",
  "type": "SYSTEM_SHUTDOWN",
  "from": "coordinator",
  "to": "all",
  "content": {
    "reason": "User requested shutdown"
  },
  "timestamp": "2025-07-08T15:57:54.130Z",
  "priority": "urgent",
  "status": "completed"
}