[SOLVED] Send Extension PubSub Message with JWT Bearer

Extensions
2

Still getting 403s…

{
    "error": "Forbidden",
    "status": 403,
    "message": "{\n  \"status\": 403,\n  \"message\": \"JWT could not be verified\",\n  \"error\": \"Forbidden\"\n}"
}

C#

using System.IdentityModel.Tokens;
using System.IdentityModel.Tokens.Jwt;

...

        public static long ToUnixTime(DateTime date)
        {
            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            return Convert.ToInt64((date - epoch).TotalSeconds);
        }

        private string GetSignedJWT()
        {
            DateTime now = DateTime.Now;
            DateTime expires = now + TimeSpan.FromSeconds(60);
            long exp = ToUnixTime(expires);

            var claimsIdentity = new ClaimsIdentity(new List<Claim>()
            {
                new Claim(ClaimTypes.NameIdentifier, _mUserId),
                new Claim(ClaimTypes.Role, "broadcaster"),
            }, "Custom");

            var plainTextSecurityKey = VALUE_CLIENT_SECRET;
            byte[] keyBytes = Encoding.UTF8.GetBytes(plainTextSecurityKey);

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

            var securityTokenDescriptor = new Microsoft.IdentityModel.Tokens.SecurityTokenDescriptor()
            {
                Issuer = "Twitch",
                Subject = claimsIdentity,
                Audience = "OAuth2",
                Expires = expires,
                NotBefore = now,
                IssuedAt = now,
                SigningCredentials = signingCredentials
            };

            var jwtHeader = new JwtHeader(signingCredentials);

            JObject jsonPayload = new JObject();
            jsonPayload.Add("exp", exp);
            jsonPayload.Add("channel_id", _mUserId);
            jsonPayload.Add("user_id", _mUserId);
            jsonPayload.Add("role", "external");
            JObject pubsubPerms = new JObject();
            JArray send = new JArray();
            send.Add("*");
            pubsubPerms.Add("send", send);
            jsonPayload.Add("pubsub_perms", pubsubPerms);
            string payload = jsonPayload.ToString();
            JwtPayload jwtPayload = JwtPayload.Deserialize(payload);

            var secToken = new JwtSecurityToken(jwtHeader, jwtPayload);

            var tokenHandler = new JwtSecurityTokenHandler();
            var signedAndEncodedToken = tokenHandler.WriteToken(secToken);

            return signedAndEncodedToken;
        }