What is the correct syntax for DB Read Conditions in CFv5?

This is in regards to an IPN event for the PayPal Listener...

I'm not able to get the DB Read to work when I try to use an "AND" condition. It's within the On Verified event...
It works fine with a single field like this:

<?php return array('DataReValidation.uniq_id' => $form->data("custom")); ?>

but not like this:

<?php return array('DataReValidation.uniq_id' => $form->data("custom"),'DataReValidation.ppStatus' => 'Paid' ); ?>

The form just stops processing... no Email sent from either db_found or db_not_found

I've tried some combinations from here with no luck: https://www.chronoengine.com/faqs/72-ccv5/5215-how-do-i-build-a-where-statement-in-ccv5.html

You can open the IPN event in your browser address bar and add a debugger action after the db read to check the debug info with the SQL statement executed, your code should work fine!

Regards,
Max