in my app, I want to give permission, to a prime user to get the data accessing but if you were not a prime user of the Wix then you will not able to access the data of the app can anyone help me on doing this
You probably want to implement a role system on your website and control page access based on roles:
https://support.wix.com/en/article/changing-the-permissions-of-a-member-role
You can also achieve that with paid plan:
https://support.wix.com/en/article/limiting-site-pages-to-paying-members-using-the-paid-plans