Metadata in React.js

[bookdrive.lokd]

Kindly help me in this as well.

Verify email with code?

I want when the user’s signup the email_verified : false is returned. But i want the user to recieve a verification OTP on their mail, which they will enter on the auth0 page and then i receives the email_verified = true eveytime when a new user signup. How do I achieve this functionality? I would prefer a detailed process.