To deploy the Securly SmartPAC solution using AirWatch MDM you will need to undertake the following steps:

On the left side menu, scroll down to ‘Network’ and under ‘Proxy’ settings change from Gateway Platform to Auto and enter the SmartPAC URL for your school. If you do not know the URL, please contact support.
In the left-side menu, navigate to ‘Credentials’.
Click on "Upload" next to "Certificate" and browser to where you downloaded the Securly certificate and click on "Save".
Click on "Save & Publish".

How to deploy Securly SmartPAC to macOS X with Airwatch MDM