Webhooks into Xibo

Hello all,
I am fairly new to the Webhook terminology uses but have a very good use for Xibo and webhooks.

Let me explain my scenario…

A webhook sends a notification with information to a URL of my choice
My web server receives the information (potentially saves it)
Xibo displays part of the received notification in real time.

Has anyone done anything similar to this with Xibo and what is the best way of doing it?

I have thought about saving the information to a DB (as it is webhook POST data) but then I need to CRON every so often to get a PHP script to extract the data. This seems to make the webhook useless and I might as well use REST API’s.

All programming and interpretation of the POST data is done by decoding the JSON with PHP as the main language