Configuration

Whenever a VASP is assigned a user-signing URL, the VASP must provide a JSON configuration file that includes the following information:

`JSON [ {"user_signing_url":"https://vasp-name.usersigning.shyft.network"} {"callback_url":"https://vasp-callback-url.com"} ] `