Create wallet (external account)

curl --request POST \
  --url https://api.sandbox1-dev.finhost.io/crypto-transfer/wallets \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "accountId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "network": "ethereum"
}'

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