SigningParameters
data class SigningParameters(val context: Context, val algorithm: String, val keyPair: KeyPair, val signature: Signature?, val kid: String, val userId: String, val challenge: String, val issueTime: Instant, val notBeforeTime: Instant, val expiration: Instant, val attestation: Attestation = Attestation.None)
Parameters required for signing a JWT with device binding authentication.