curl --request POST \
  --url https://api.topsort.com/public/v1/assets/asset \
  --header 'Content-Type: application/json' \
  --data '{
  "brands": [
    "<string>"
  ],
  "collectionIds": [
    "<string>"
  ],
  "externalUrl": "<string>",
  "metadata": {},
  "mimetype": "image/jpeg",
  "name": "<string>",
  "productIds": [
    "<string>"
  ]
}'

{
  "brands": [
    "<string>"
  ],
  "fields": {},
  "id": "<string>",
  "isExternal": true,
  "metadata": {},
  "mimetype": "<string>",
  "name": "<string>",
  "productIds": [
    "<string>"
  ],
  "status": "pending_upload",
  "uploadUrl": "<string>",
  "url": "<string>"
}