How do I catch a weebhook in Enrich v3 api?

Person Api v2 allowed you to pass a webhookUrl + webhookId to it.
So you can catch answer and tie it later to your request.

Can't figure out how to do it in Enrich api v3. When I send a request, I don't get any id from you. All I get from initial request is:
"status"= 202
"message"= "Queued for search. Your response will be sent to your webhook shortly at {webhookUrl}."

When I pass a webhookId with the request - it seems to have no effect. Responses caught to webhookUrl also don't have any id. How can I tie request and a response?