I'm sorry, I've never used these signatures before and maybe I did something wrong.
I hope I understood you correctly. here is my posting to the administrator:

-----BEGIN BITCOIN SIGNED MESSAGE-----
My account ionelan https://bitcointalk.org/index.php?action=profile;u=191126 (https://bitcointalk.org/index.php?action=profile;u=191126) has been hacked/lost. Please reset the email to ivankolokol@gmail.com (the same). The current date is 13.01.2018.
-----BEGIN SIGNATURE-----
DOGECOIN:
DGouWQZEGgRpTMVeHgEp4s6WJMjYAR3y8M
IORx6ypVHO95WZS/6eG0kduQqen3zkJ1lYaaA1QPQGarTMCfRy8THVaidEw17RfqyVH7htdOqHb/bvrHlIVfu6U=
-----END BITCOIN SIGNED MESSAGE-----

Here is the unedited post where I posted that address:
https://bitcointalk.org/index.php?topic=370234.msg4053358#msg4053358