curl --location --request PUT '/advisor/appointments//approve' \
--header 'Authorization: Bearer <token>'{
"id": 0,
"ondernemerId": 0,
"adviseurId": 0,
"titel": "string",
"beschrijving": "string",
"startTijd": "2019-08-24T14:15:22.123Z",
"eindTijd": "2019-08-24T14:15:22.123Z",
"status": "VOORSTEL"
}