I have created an Auth0 client, I am logging in and receive this token:
eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ik1rVkdOa1l5T1VaQ1JqTkRSVE5EUmtNeU5rVkROMEUyU
You need to specify the allowed algorithms as an Array of Strings, instead of an algorithm String.
algorithm
jwt.verify(token, MYSECRET, { algorithms: ['RS256'] });