curl --request POST \
  --url https://prod-api.raisedonors.com/api/Donor/{id}/activity \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "referenceId": 123
}
'

{
  "id": 123,
  "display": "<string>",
  "createdDate": "<string>",
  "createdTime": "<string>",
  "donorId": 123,
  "donorAddressId": 123,
  "donorContactMethodId": 123,
  "giftId": 123,
  "emailSubject": "<string>",
  "emailFromName": "<string>",
  "emailFromEmail": "<string>",
  "emailTemplateType": 123,
  "emailTemplateId": 123
}