curl --request POST \
  --url https://www.dench.com/api/v1/auth/signin-requests/{requestId}/poll \
  --header 'Content-Type: application/json' \
  --data '
{
  "codeHash": "string",
  "sessionTokenHash": "string"
}
'

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>",
    "details": "<unknown>"
  }
}