POST /

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

Action=ModifyReservedInstances&ClientToken=__ClientToken__&ReservedInstancesConfigurationSetItemType.1.AvailabilityZone=__AvailabilityZone__&ReservedInstancesConfigurationSetItemType.1.AvailabilityZoneId=__AvailabilityZoneId__&ReservedInstancesConfigurationSetItemType.1.InstanceCount=1&ReservedInstancesConfigurationSetItemType.1.InstanceType=a1.medium&ReservedInstancesConfigurationSetItemType.1.Platform=__Platform__&ReservedInstancesConfigurationSetItemType.1.Scope=Availability+Zone&ReservedInstancesConfigurationSetItemType.2.AvailabilityZone=__AvailabilityZone__&ReservedInstancesConfigurationSetItemType.2.AvailabilityZoneId=__AvailabilityZoneId__&ReservedInstancesConfigurationSetItemType.2.InstanceCount=1&ReservedInstancesConfigurationSetItemType.2.InstanceType=a1.medium&ReservedInstancesConfigurationSetItemType.2.Platform=__Platform__&ReservedInstancesConfigurationSetItemType.2.Scope=Availability+Zone&ReservedInstancesId.1=__Member__&ReservedInstancesId.2=__Member__&Version=2016-11-15