Yes, you can simply deactivate the plugin from pre-production and then use the same license key to activate the plugin on your production environment.
However, since the plugin licenses are linked to the domain of the site, you will need to purchase another license key if you want the plugin to be active on pre-production and production simultaneously.
Please contact us at samlsupport@xecurify.com if you are facing any issues or if you want to purchase a pre-production license.