curl --request GET \
  --url http://localhost:3000/v1/notifications/tokens/{userId}

{
  "tokens": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "token": "<string>",
      "platform": "<string>",
      "device_name": "<string>",
      "is_active": true,
      "last_used_at": "<string>",
      "created_at": "<string>"
    }
  ]
}