How to decode JWS Token from external API?

I need to get some payloads from JWT Token and store it to xano database.

I've used security function called JWS Decode and fill in the configuration as needed, like token from external API, shared key from external API and HS256 in signature_algorithm.

I tried to run & debug the function and then the result is "unable to load and verify the token"

Can someone help me figure out what I'm doing wrong / what I'm missing?