x<?xml version="1.0"?>
<ItemLookupErrorResponse xmlns="http://ecs.amazonaws.com/doc/2009-03-01/"><Error><Code>SignatureDoesNotMatch</Code><Message>The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.</Message></Error><RequestId>a4a6eb0f-c13d-4f11-98e4-5a40b4a479a2</RequestId></ItemLookupErrorResponse>x