After other press found the story was true, he was forced to rescind that order. The damage was done.
He also got the cops to raid some businessmen' homes at 6am because they were in a group chat where someone else joked about a coup.
Source: NYTimes article: https://archive.is/plQFT
It would have been strange if they hadn't upheld it.
Check it out:
https://news.ycombinator.com/item?id=39966382
Long story short: one brazilian magazine ran a damning article on one of the supreme court judges, so they created a "fake news" inquisition and "randomly" appointed this Moraes guy as the head of it. First thing he did was censor the magazine as "fake news".
And it only got worse from there. The "fake news" campaign is still ongoing. Supreme court is literally the highest power in this country right now. Our representatives only exist to create the illusion of democracy.