{"ClusterSubnetGroups": [
    {"ClusterSubnetGroupName": "my-subnet-group",
     "Description": "my subnet group",
     "SubnetGroupStatus": "Complete",
     "Subnets": [{"SubnetAvailabilityZone": {"Name": "us-east-1a"},
                  "SubnetIdentifier": "subnet-71c5091c",
                  "SubnetStatus": "Active"},
                 {"SubnetAvailabilityZone": {"Name": "us-east-1a"},
                  "SubnetIdentifier": "subnet-78de1215",
                  "SubnetStatus": "Active"}],
     "VpcId": "vpc-5d917a30"}],
 "ResponseMetadata": {"RequestId": "42024b68-6af3-11e2-a726-6368a468fa67"}
}