Only if it's a collection property:

Class Utils.DynArrayProp Extends %Persistent
{

Property A;

Property B As list Of %Integer;

/// do ##class(Utils.DynArrayProp).Test()
ClassMethod Test()
{
	Do ..%KillExtent()
	Set json = "{""A"":123,""B"":[1,2,3]}"
	Set dynamicObject = {}.%FromJSON(json)
	Set object = ##class(%ZEN.Auxiliary.altJSONProvider).%UnpackObjectToCOSObject(dynamicObject, $classname())
	Set sc = object.%Save()
	ZW sc,object,^Utils.DynArrayPropD
}
}