curl --request GET \
  --url https://api.vantage.sh/v2/anomaly_notifications \
  --header 'Authorization: Bearer <token>'

{
  "links": {
    "self": "https://api.vantage.sh/v2/anomaly_notifications",
    "first": "https://api.vantage.sh/v2/anomaly_notifications?page=1",
    "next": null,
    "last": "https://api.vantage.sh/v2/anomaly_notifications?page=1",
    "prev": null
  },
  "anomaly_notifications": [
    {
      "token": "rprt_alrt_ecb76d8d2825762f",
      "cost_report_token": "rprt_45fe4d4c1779ce7e",
      "created_at": "2024-04-09T15:05:37Z",
      "updated_at": "2024-04-09T15:05:37Z",
      "threshold": 10,
      "user_tokens": [
        "usr_13477ee1b1eb81ba"
      ],
      "recipient_channels": []
    }
  ]
}