Hello,
As far as I know to get an EA Azure subscription you need to enroll via Microsoft Authorized Enterprise Software Advisor or Licensing Solutions Provider and go to this portal https://ea.azure.com/ in order to create your Azure subscription
So to answer your question I think it will be a PAYG subscription
Below some articles regarding Enterprise Agreement :
https://www.microsoft.com/en-us/licensing/licensing-programs/enterprise?activetab=enterprise-tab:primaryr2
https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/ea-portal-administration
Best Regards,