public function getOauth64()
{
// Get a new token if it's not available or has expired
if (is_null($this->oauthToken) or $this->oauthToken->hasExpired()) {
$this->oauthToken = $this->getToken();
}
return base64_encode('user=' . $this->oauthUserEmail . "auth=Bearer " . $this->oauthToken . "");
}