Haven't fully QA'd as I am not sure how to repro locally(when I test the
pubsub arrives before we ever run the reconciler) however this should
cause 4xx to be returned from the website instead of 5xx for android
unenrolled. We use the exact same code on a different endpoint
<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#34988 partially. This just helps reduce
alerts to help-p1 and implements the interface that the server is
expecting