QQ space pays attention to friends' dynamics. How to set up SMS notification?

It used to be possible, but it has not worked in recent months.

I used to set up SMS notification, but recently I found that I didn't inform you several times. After checking, I found that it will take 15 yuan to open "mobile phone QZone" and it seems that only friends can be set, but not friends.

If it is already open, go to your own space and click "Friends" and then click "Friends Management", but it seems that you can't set your attention to your friends.