code: public static JWTPayload getPayload(String tokenString) {
          JWTPayload payload = null;
          String[] jwtParts = splitTokenString(tokenString);
          if (jwtParts.length >= 2) {
              WSJsonToken token = deserialize(jwtParts, tokenString);
              payload = new JWTPayload();
              fromJsonToken(token, payload);
          }
          return payload;
      }
docs: Extract payload from token without validating.