Extension Chat Message returns 401 authentication failed

Extensions
5

This is the class i used for JWT encode.
Also i copied jwt code and paste to jwt.io for check payload data. On that site its decoded like this.

{"exp":1592923080,"user_id":"49354541","role":"external"}"

so it’ll be about base64 encode/decode. Going to check that.

public static function encode($payload, $key, $alg = ‘HS256’, $keyId = null, $head = null)
{
$header = array(‘typ’ => ‘JWT’, ‘alg’ => $alg);

    if ($keyId !== null) {
        $header['kid'] = $keyId;
    }

    if ( isset($head) && is_array($head) ) {
        $header = array_merge($head, $header);
    }

    $segments = array();
    $segments[] = static::urlsafeB64Encode(static::jsonEncode($header));
    $segments[] = static::urlsafeB64Encode(static::jsonEncode($payload));
    $signing_input = implode('.', $segments);
    $signature = static::sign($signing_input, $key, $alg);
    $segments[] = static::urlsafeB64Encode($signature);

    return implode('.', $segments);
}

public static function sign($msg, $key, $alg = 'HS256')
{
    if (empty(static::$supported_algs[$alg])) {
        throw new Exception('Algorithm not supported');
    }
    list($function, $algorithm) = static::$supported_algs[$alg];
    switch($function) {
        case 'hash_hmac':
            return hash_hmac($algorithm, $msg, $key, true);
        case 'openssl':
            $signature = '';
            $success = openssl_sign($msg, $signature, $key, $algorithm);
            if (!$success) {
                throw new Exception("OpenSSL unable to sign data");
            } else {
                return $signature;
            }
    }
}