Hi @gjudd, For creating JWT with NodeJS I am using https://www.npmjs.com/package/jsonwebtoken :-
var jwt = require('jsonwebtoken');
var expiry = ((new Date()).getTime() + 3600000); // JWT validity 1 hour
var payload = {
"iss": API_KEY, // replace API_KEY with your API_KEY
"exp": expiry
};
var jwtToken = jwt.sign(payload, API_SECRET); // replace API_SECRET with your API_SECRET
NOTE : In my case SDK_KEY and SDK_SECRET did not work.