json_object_object_add(mo, ATT_MEASURE_TIME,
json_object_new_int((m->time).tv_sec));
json_object_object_add(obj, ATT_SENSOR_LAST_MEASURE, mo);
json_object_object_add(mo, ATT_MEASURE_TIME,
json_object_new_int((m->time).tv_sec));
json_object_object_add(obj, ATT_SENSOR_LAST_MEASURE, mo);