[SOLVED] Send Extension PubSub Message with JWT Bearer

Extensions
3

Given:

var signingCredentials = new Microsoft.IdentityModel.Tokens.SigningCredentials(
                signingKey,
                SecurityAlgorithms.HmacSha256Signature);

The JWT is listing the alg as:

{[alg, http://www.w3.org/2001/04/xmldsig-more#hmac-sha256]}

The sample public key shows RS256.
https://api.twitch.tv/api/oidc/keys

Is this a problem?