{
		"collection_hashed_rwset": [],
		"namespace": "balance",
		"rwset": {
				"metadata_writes": [],
				"range_queries_info": [],
				"reads": [
					 {
					 "key": cert,
					 "version": {
					 "block_num": "20",
					 "tx_num": "0"
					 }
					 }
				],
				"writes": [
					 {
					 "is_delete": false,
					 "key": cert,
					 "value": []byte(balance+","+spend)
					 }
				]
		}
}, //新增                                                                                                               
{
	"collection_hashed_rwset": [],
	"namespace": "lscc",
	"rwset": {
			"metadata_writes": [],
			"range_queries_info": [],
			"reads": [
				 {
				 "key": "qcdatacc",
				 "version": {
				 "block_num": "1",
				 "tx_num": "0"
				 }
				 }
			],
			"writes": []
	}
},
{
	"collection_hashed_rwset": [],
	"namespace": "qcdatacc",
	"rwset": {
			"metadata_writes": [],
			"range_queries_info": [],
			"reads": [],
			"writes": [
				 {
				 "is_delete": false,
				 "key": "test",
				 "value": "MTA="
				 }
			]
	}
}//原有