curl --request GET \
  --url https://alerts-api.dial.to/v2/history/summary \
  --header 'Authorization: Bearer <token>' \
  --header 'X-Dialect-Client-Key: <x-dialect-client-key>'

{
  "unreadCount": 5,
  "lastRead": {
    "timestamp": "2024-02-20T15:30:00.000Z"
  }
}