Help with Device and Restful API

Configuration
1

Hello,
my program send this Json to HA, everything work fine except that the sensor is only in entity and I can’t see the lenovo under device, probably I miss something…
My scope is to create a Device called Lenovo S30 with inside Entity PVE_WD20EADS_temp

{
   "state":"52.0",
   "attributes":{
      "friendly_name":"WD20EADS Temperature",
      "icon":"mdi:harddisk",
      "state_class":"measurement",
      "unit_of_measurement":"°C",
      "device_class":"temperature",
      "unique_id":"PVE_WD20EADS_temp"
   },
   "device":{
      "identifiers":[
         "lenovo_s30"
      ],
      "name":"Lenovo S30",
      "manufacturer":"Lenovo",
      "model":"S30"
   }
}

URL: http://192.168.0.22:8123/api/states/PVE_WD20EADS_temp

Best Regards
Stefano