JWT authentication is used by MyTime for the marketplace API. Our merchants use it to automatically provision and authenticate users who are logged in to an external (to MyTime) authentication platform. This authentication provider is in charge of creating JSON Web Tokens. If MyTime validates the web token as coming from the merchant (i.e. the signature is verified), we grant access to the corresponding user account's data.
Single Sign-on Using JWT Guide https://docs.google.com/document/d/1Hf4Z0QJUts3xTsN5FssgigHlPQd4ig8Yro3P2rp2N8Y/edit