Get Authorization info in Custom Validator, asp.net core

i'm writing in asp.net core, in form i have string field PESEL(it is some ID number in Poland) and boolean field NoPesel. Pesel is validating only when field NoPesel is unchecked.

Now i want to add new functionality: If user is SignIn/authorize then turn off validation even if NoPesel is unchecked.

And i have no idea how to do this. Should i try to do it by reflecion, or some context? Did someone know how to do this?

 public sealed class PeselValidator : ValidationAttribute
 {
    // private const string DefaultErrorMessage = "Nie poprawny numer pesel";

    public string NoPesel { get; set; }


    protected override ValidationResult IsValid(object value, ValidationContext validationContext)
    {
        if (PeselRequired(validationContext.ObjectInstance, NoPesel))
        {
            return ValidationResult.Success;

        }


        if ((value == null) || (!ValidatePesel(value.ToString())) )
            return new ValidationResult(FormatErrorMessage(validationContext.DisplayName));

        return ValidationResult.Success;
    }

    public override string FormatErrorMessage(string name)
    {
        return base.FormatErrorMessage(ErrorMessageResourceName);
    }

    public void AddValidation(ClientModelValidationContext context)
    {
        if (context == null)
        {
            throw new ArgumentNullException(nameof(context));
        }
        ErrorMessage = FormatErrorMessage(context.ModelMetadata.GetDisplayName());


    }

    private bool PeselRequired(object objectInstance, string NoPesel)
    {
        var propertyInfo = objectInstance.GetType().GetProperty(NoPesel);
        var x = propertyInfo.GetValue(objectInstance, null);
        return (bool)x;
    }

    public static bool ValidatePesel(string szPesel)
    {
        //some logic checking PESEL SUM
        return true;
    }

}