I do not believe you understood my request. I have subscribed to a webhook. The webhook has a publisher and a receiver. WooCommerce is the publisher, my client application is the subscriber.
When a new order is created in WooCommerce, the webhook pushes information about the order to my client application.
I am looking for help either adding information to the data sent by the publisher, or alternatively, a REST API that will allow me to query WooCommerce to get the license key associated with a line item in the order