Bitbucket Webhook Event Listener

I am looking for the javadoc detailing the events related to Webhook creation, deletion and modification in Bitbucket. Most of the documentation that I have come across from Atlassian only talk about responding to PR events that are published by the hook. I am looking for events that I can capture for when a webhook itself is created, modified or deleted.

On deleting the webhook from the UI, I see the following event description in the log. I am unable to find the class that I would need to use in order to capture the event programatically.

Processing event class com.atlassian.webhooks.event.Webh
ookDeletedEvent from com.atlassian.event.internal.LockFreeEventPublisher.publish(LockFreeEventPubli
sher.java:95) com.atlassian.stash.internal.event.TransactionAwareEventPublisher.internalPublish(Tra
nsactionAwareEventPublisher.java:155) com.atlassian.stash.internal.event.TransactionAwareEventPubli
sher.publish(TransactionAwareEventPublisher.java:99) sun.reflect.GeneratedMethodAccessor716.invoke(
Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:4
3) java.lang.reflect.Method.invoke(Method.java:498) com.atlassian.plugin.util.ContextClassLoaderSet
tingInvocationHandler.invoke(ContextClassLoaderSettingInvocationHandler.java:26) com.sun.proxy.$Pro
xy481.publish(Unknown Source) sun.reflect.GeneratedMethodAccessor716.invoke(Unknown Source) sun.ref
lect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

Is there something available that I can use?