post https://www.quidax.com/api/v1/users
Create a sub account tethered to the authenticated user
Generating wallet address for your sub-accounts.
Wallet addresses are generated on demand for sub-accounts, so after creating a sub-account you would need to call the fetch payment address endpoint to create a wallet address for sub-account account which a wallet.address.generated webhook would be dispatched after the address has been created.