Set default split for multiple assets

curl --request PUT \
  --url https://server26-dot-royalti-project.uc.r.appspot.com/asset/bulk/defaultsplit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "assets": [
    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  ],
  "userId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "share": 50
}'

{
  "success": true,
  "message": "<string>",
  "data": {}
}