#### example: notify-add-appointment ``` { "last_updated": "2019-03-22 05:58:35pm", "resourceType": "Bundle", "type": "message", "entry": [ { "resource": { "resourceType": "MessageHeader", "eventCoding": { "code": "notify-add-appointment", "display": "Notify Add appointment" }, "destination": [ { "endpoint": "https://sandbox.caredove.com/api/native_v1/last_payload_fhir4" } ], "focus": [ { "identifier": { "type": { "text": "Caredove Inc." }, "system": "https://caredove.com/fhir/NamingSystem/id-referral", "value": "94jd7597-d19a-41c2-bb9a-3077s53bd9ae" } } ] }, "request": { "url": "MessageHeader" } }, { "fullUrl": "3054622302", "resource": { "resourceType": "Appointment", "id": "3054622302", "status": "cancelled", "basedOn": [ { "reference": "ServiceRequest/3054622302" } ], "participant": [ { "status": "declined" } ] }, "request": { "url": "Appointment" } } ] }