{
 "update" : {
   "mac" : "TEXT",
   "imsi" : INT,
   "accounts" : {
     "type1" : ["acc1", "acc2"],
     "type2" : ["acc1", "acc2"]
   },
   "apps" : {
     "app1" : "version",
     "app2" : "version"
   },
   "balance" : "TEXT",
   "packet" : "TEXT",
   "system_version" : "TEXT"
 },
 "device" : {
   "model" : "TEXT",
   "vendor" : "TEXT",
   "imei" : INT,
   "cpu_clock" : INT, // w MHz
   "cpu_cores" : INT,
   "cpu_model" : "TEXT",
   "screen_size" : FLOAT(2),
   "resolution_w" : INT,
   "resolution_h" : INT,
   "mac" : "TEXT",
   "ram" : INT, // w MB
   "screen_density" : INT,
   "layouts" : "TEXT",
   "system_version":"4.2.2"
 },
 "sim" : {
   "mcc" : "TEXT",
   "mnc" : "TEXT",
   "msisdn" : INT,
   "imsi" : INT
 },
 "ts":"1429395202331"
}