curl --request POST \
  --url https://api.us.lexful.app/v1/organizations/{organizationId}/image_upload \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Account-ID: <api-key>' \
  --data '
{
  "original_name": "<string>",
  "file_extension": "<string>",
  "mime_type": "<string>",
  "size": 123
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "upload_url": "<string>"
}