public function setCachedToken($key, $refreshToken, $expiresAt = null)
    {
        if (is_null($expiresAt)) {
            $expiresAt =  ((int) Config::get('laravel_jwt.cache_ttl') / 60);
        }
        Cache::put($key, $refreshToken, $expiresAt);
        $this->cachedToken = $refreshToken;

        return $this;
    }