curl --request GET \
  --url https://api.decodahealth.com/email/threads/system \
  --header 'API-KEY: <api-key>' \
  --header 'TENANT: <tenant>'

{
  "data": [
    {
      "id": "<string>",
      "subject": "<string>",
      "snippet": "<string>",
      "isRead": true,
      "isStarred": true,
      "isArchived": true,
      "firstMessageDate": "2023-11-07T05:31:56Z",
      "lastMessageDate": "2023-11-07T05:31:56Z",
      "createdDate": "2023-11-07T05:31:56Z",
      "updatedDate": "2023-11-07T05:31:56Z",
      "messageCount": 0,
      "fromContact": {
        "id": "<string>",
        "email": "<string>",
        "displayName": "<string>",
        "contactType": "EXTERNAL",
        "patientIds": []
      },
      "toContacts": []
    }
  ],
  "total": 123
}