{
  "DBSubnetGroupName": "my-neptune-cluster",
  "DBSubnetGroupDescription": "example-string",
  "VpcId": "neptune-cluster-abc123",
  "SubnetGroupStatus": "available",
  "Subnets": [
    {
      "SubnetIdentifier": "neptune-cluster-abc123",
      "SubnetAvailabilityZone": {
        "Name": {}
      },
      "SubnetStatus": "available"
    }
  ],
  "DBSubnetGroupArn": "arn:aws:neptune:us-east-1:123456789012:cluster:neptune-1"
}