curl --request POST \
  --url https://api.topsort.com/public/v1/billing-service/vendors/{external-vendor-id}/wallets \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>"
}
'

{
  "walletId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}