{
  "resourceType": "Observation",
  "id": "s4h-24h-average-heart-rate-example",
  "meta": {
    "profile": [
      "http://fhir.smart4health.eu/StructureDefinition/s4h-observation-base"
    ]
  },
  "status": "final",
  "code": {
    "coding": [
      {
        "code": "41924-2",
        "system": "http://loinc.org",
        "display": "Heart rate 24 hour mean"
      }
    ],
    "text": "Heart rate 24 hour mean"
  },
  "category": [
    {
      "coding": [
        {
          "code": "activity",
          "system": "http://terminology.hl7.org/CodeSystem/observation-category"
        }
      ],
      "text": "Activity"
    }
  ],
  "subject": {
    "identifier": {
      "value": "c7382336-e704-4c6b-a4e9-190a3695aa23",
      "system": "http://fhir.data4life.care/CodeSystem/user-id"
    }
  },
  "effectiveDateTime": "2021-05-27",
  "valueQuantity": {
    "value": 70,
    "code": "{beats}/min",
    "system": "http://unitsofmeasure.org",
    "unit": "beats per minute"
  },
  "device": {
    "identifier": {
      "value": "g639d0821535fd6553fa8764",
      "system": "http://example.com/custom-device-id-namespace"
    }
  }
}