ldapsearch ...  | perl -MMIME::Base64 -n -00 -e 's/\n //g;s/(?<=:: )(\S+)/decode_base64($1)/eg;print'
 [or]
ldapsearch ...  | perl -MMIME::Base64 -n -00 -e 's/\n //g;s/(?<=:: )(\S+)/decode_base64($1)/eg;print if /Beyoncé/'