put https://cloud.privakey.com/api/account/webauthn/bind
Creates or associates an account from your system to a Privakey account.
If the accountId has not yet been used, a new account is created. The location URL of the new account is placed in the header. Additionally, "registrationOptions" are returned. This value is intended to be used by the webauthn client to create new credentials.
If the accountId has already been used, the registration options are simply returned.