{
  "vessels": {
    "urn:mrn:imo:mmsi:230099999": {
      "uuid": "urn:mrn:signalk:uuid:c0d79334-4e25-4245-8892-54e8ccc8021d",
      "mmsi": "230099999",
      "environment": {
        "outside": {
          "illuminance": {
            "value": 20000,
            "$source": "i2c-0.0x48",
            "timestamp": "2017-01-24T23:59:01Z"
          }
        }
      }
    }
  },
  "sources": {
    "i2c-0": {
      "label": "",
      "type": "signalk"
    }
  },
  "version": "1.0.0",
  "self": "vessels.urn:mrn:imo:mmsi:230099999"
}