NIMSubscribeEvent 成员列表

成员的完整列表，这些成员属于 NIMSubscribeEvent,包括所有继承而来的类成员

	eventId	NIMSubscribeEvent
	expiry	NIMSubscribeEvent
-	ext:	NIMSubscribeEvent
	from	NIMSubscribeEvent
	sendToOnlineUsersOnly	NIMSubscribeEvent
-	setExt:	NIMSubscribeEvent
	subscribeInfo	NIMSubscribeEvent
	syncEnabled	NIMSubscribeEvent
	timestamp	NIMSubscribeEvent
	type	NIMSubscribeEvent
	value	NIMSubscribeEvent