In the limits and restrictions section of the webhooks v2 API documentation, it says that
"There is a limit of 1000 webhooks on each combination of application and user. In other words, you can create up to 1000 webhooks on a particular application for user Alice, but not more. On the other hand, if there are already 1000 webhooks on the app for Alice, you can still create new webhooks on the same app for user Bob, up to another 1000."
However, when creating a webhook, the webhook object does not designate a user to whom the webhook should be assigned. Can you describe further what is meant by the limit of 1000 webhooks for a user?