Creating Jira Webhooks - jqlFilter not working as expected

Jira Development Jira Cloud
3

Thanks @dmorrow - Ive tried using the project key, removing the quotes and escaping the quotes to no avail. Everything else seems to work except the jqlFilter. The response Im getting back is:

{
          "name": "Workdrum Issues created and updated webhook",
          "url": "https://workdrumdev.au.ngrok.io/jira/issuewebhook",
          "excludeBody": false,
          "filters": {
            "issue-related-events-section": ""
          },
          "events": [
            "jira:issue_updated",
            "jira:issue_created",
            "jira:issue_deleted"
          ],
          "enabled": true,
          "self": "https://workdrum.atlassian.net/rest/webhooks/1.0/webhook/16",
          "lastUpdatedUser": "admin",
          "lastUpdatedDisplayName": "Adam Moroff",
          "lastUpdated": 1589948535168
        }

I can see the filters object has a property called issue-related-events-section and its blank. Am I missing something in the request??