curl --request POST \
  --url https://api.quiva.ai/accounts/begin-auth-with-passkey \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "user@example.com",
  "account": "acme"
}
'

{
  "data": {
    "challenge": "<string>",
    "timeout": 123,
    "rpId": "<string>",
    "allowCredentials": [
      {
        "id": "<string>",
        "type": "<string>",
        "transports": [
          "<string>"
        ]
      }
    ],
    "userVerification": "<string>"
  }
}