This is the secret key to the web feed of your watchlist. Anyone who knows it will be able to read your watchlist, so do not share it. Click here if you need to reset it.
MediaWiki:Prefs-help-watchlist-token2
From YTMND
This is the secret key to the web feed of your watchlist. Anyone who knows it will be able to read your watchlist, so do not share it. Click here if you need to reset it.