Notifications sent by the notifier from Clair to Quay are not working with 400 Bad Request

Notifications sent by the notifier from Clair to Quay are not working: {"level":"error","component":"notifier/service/Init","component":"notifier/service/webhookInit","deliverer":"webhook","id":3,"component":"notifier/delivery/Delivery.deliver","error":"failed to deliver notification: code: 400 status 400 Bad Request","time":"2021-06-10T14:10:09Z","time":"2021-06-10T14:10:09Z","message":"encountered error on tick"}

Communication between Quay and Clair {"level":"info","component":"httptransport/New","remote_addr":"10.129.5.178:37344","method":"GET","request_uri":"/indexer/api/v1/index_state","status":200,"time":"2021-06-14T14:54:16Z","message":"handled HTTP request"}

Manifests are being fetched and indexed
{ "level": "info", "component": "internal/indexer/controller/Controller.Index", "manifest": "sha256:e1e182f9da561959fb023f762bbfc4a4aa019e6cda426c9dbf4fbedc96b2bf47", "state": "FetchLayers", "time": "2021-06-14T14:51:17Z", "message": "layers fetch start"
}
{ "level": "info", "component": "internal/indexer/controller/Controller.Index", "manifest": "sha256:e1e182f9da561959fb023f762bbfc4a4aa019e6cda426c9dbf4fbedc96b2bf47", "state": "IndexFinished", "time": "2021-06-14T14:51:18Z", "message": "manifest successfully scanned"
}