POST to mark a title as ignored

A title is ignored by POSTing a record that has that title's counter report ID and sets kbManualMatch true, but does not set a kbTitleId, like this:

POST /eusage-reports/report-titles
{
  "titles": [
    {
      "id": "0bcfed32-07c3-4062-a30a-d1df42e8cb39",
      "counterReportTitle": "Cultural Critique",
      "kbManualMatch": true
    }
  ]
}

But this is presently rejected with 400 Bad Request.