curl --request POST \
  --url https://sandbox.oumla.com/api/v1/wallets/generate \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "reference": "<string>",
  "network": "BTC"
}'

{
  "message": "<string>",
  "data": {},
  "success": true,
  "status": 123
}