POST /

Content-Type: application/x-www-form-urlencoded

Action=ModifyInstanceAttribute&Attribute=instanceType&BlockDeviceMapping.1.DeviceName=__DeviceName__&BlockDeviceMapping.1.Ebs.DeleteOnTermination=true&BlockDeviceMapping.1.Ebs.VolumeId=__VolumeId__&BlockDeviceMapping.1.NoDevice=__NoDevice__&BlockDeviceMapping.1.VirtualName=__VirtualName__&BlockDeviceMapping.2.DeviceName=__DeviceName__&BlockDeviceMapping.2.Ebs.DeleteOnTermination=true&BlockDeviceMapping.2.Ebs.VolumeId=__VolumeId__&BlockDeviceMapping.2.NoDevice=__NoDevice__&BlockDeviceMapping.2.VirtualName=__VirtualName__&DisableApiStop.Value=true&DisableApiTermination.Value=true&DryRun=true&EbsOptimized.Value=true&EnaSupport.Value=true&EnclaveOptions.Enabled=true&GroupId.1=__Member__&GroupId.2=__Member__&InstanceId=__InstanceId__&InstanceInitiatedShutdownBehavior.Value=__Value__&InstanceType.Value=__Value__&Kernel.Value=__Value__&Ramdisk.Value=__Value__&SourceDestCheck.Value=true&SriovNetSupport.Value=__Value__&UserData.Value=YmxvYg%3D%3D&Value=__Value__&Version=2016-11-15