post
https://api.productboard.com/v2/webhooks
Creates a new webhook subscription to be actively notified on each change in the specified entities.
As part of subscription creation, Productboard validates the notification URL:
it must use https, have a publicly resolvable host, and not point to localhost,
loopback, site-local, or internal addresses.
Scope requirements: the OAuth2 application must have the scopes required by all requested event types.
Callback