[URL=client://206/ZyYrGOOUNHw82dIGlKnmPaYYbts=~ToxiicTim]ToxiicTim[/URL]

private String getClickableClient(Client client)
{
    return "[URL=client://" + client.getId() + "/" + client.getUniqueIdentifier() + "~" + client.getNickname() + "][b]" + client.getNickname() + "[/b][/URL]";
}