Today's earlier sign in issues on PS4 should be fixed now. If you're still seeing the 403 error, restart and try to sign in again. Thanks for your reports and for your patience!
Replying to @TeamYouTube
Now fix the number of subscribers T-Series has and get them down to 50 Million. And make pewdiepie have 90 Million. Thnx everyone would be happy if it happend 
8:34 PM - 14 Jan 2019
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