LsaEnumerateAccountRights

[DllImport("Advapi32.dll", SetLastError = true)][return: MarshalAs(UnmanagedType.U4)]
public static extern uint LsaEnumerateAccountRights(
   IntPtr PolicyHandle,
   IntPtr AccountSid,
   out IntPtr UserRights,
   out uint CountOfRights
);

Microsoft documentation: Link