curl --request PUT \
  --url https://example.com/v1/api/datastores/v1/collections/{collectionId}/documents/{documentId} \
  --header 'Content-Type: application/json' \
  --header 'X-DOMO-Developer-Token: <api-key>' \
  --data '
{
  "content": {
    "username": "Bill",
    "band": "Wyld Stallyns"
  }
}
'

{
  "message": "<string>"
}