meeting sdk integration in react

I want to integrate meeting sdk in React using Server-To-Server OAuth
Following is my code

react-code

I am using Token that I got from https://zoom.us/oauth/token as a signature

And the issue I am getting is

Help me with the issue

@dratifgmc
If you are signing a signature for web meeting sdk in react, you will need to use the clientID and clientSecret found in Meeting SDK App Type