Compare and only show the diff between 2 Json files

I am here with a automation to use on shopify, I will get a webhook every time a customer is update.

Is possible only see the dif ?

In there any module to compare ?

In this example I only change the last_name on customer, how to identify change from the first webhook ?

I don’t think Make does this natively, but here’s one app that appears to offer such a service:

Another thing you could try is keep this customer data in a database like SmartSuite or Airtable and just update the record every time.
On the SmartSuite or Airtable side, the update request should only update fields that actually changed, then you could figure out what, if anything, has changed in the record about the customer.