curl --request POST \
  --url https://app.myhero.so/media/image \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "documentId": "<string>",
  "workspaceId": "<string>",
  "image": {
    "type": "Buffer",
    "data": [
      127
    ]
  }
}
'

{
  "data": {
    "url": "<string>",
    "_id": "<string>"
  }
}