curl "http://localhost:5080/api/v1/alerts/insights/oncall-load?window_secs=604800" \
  -H "authorization: Bearer $MS_TOKEN"

{
  "window_secs": 604800,
  "night_start_hour": 22,
  "night_end_hour": 8,
  "people": [
    {
      "user_id": "<user-id>",
      "oncall_secs": 302400,
      "pages": 9,
      "night_pages": 3,
      "weekend_pages": 2,
      "interrupted_nights": 2,
      "timezone": "Asia/Shanghai",
      "responded": 6,
      "mtta_secs": 214.0
    }
  ]
}