{
	"cmd" : "push_change_contact",
	"headers": {
      		"req_id" : "xxxx"
  	},
	"body": {
	      "timestamp":1514271983,
	      "perm_version": 5,
               "create_user": [
                   {
                       "userid":"ZangShan",
					   "user_type":0
                   },
                   {
                       "userid":"lisi",
					   "user_type":0
                   }
               ],
               "update_user":[
                   {
                       "userid":"ZangShan01",
					   "user_type":0
                   }
               ],
               "delete_user":[ 
                   {
                       "userid":"ZangShan02",
					   "user_type":0
                   }
               ]
  	}
}