POST /apis/ads/publisher/v201505/CreativeService?wsdl HTTP/1.1
Host: ads.google.com
Connection: Keep-Alive
User-Agent: PHP-SOAP/5.5.20, gzip
Accept-Encoding: gzip, deflate
Content-Type: text/xml; charset=utf-8
SOAPAction: ""
Content-Length: 621
Authorization: Bearer 123abc456xyz