curl --request PATCH \
  --url https://api.virtuoussoftware.com/api/Gift \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "id": "<integer>",
    "receiptDateUtc": "<dateTime>",
    "segmentId": "<integer>",
    "notes": "<string>",
    "customFields": "<object>"
  },
  {
    "id": "<integer>",
    "receiptDateUtc": "<dateTime>",
    "segmentId": "<integer>",
    "notes": "<string>",
    "customFields": "<object>"
  }
]
'

"<object>"