Jerusalem24 – Ruhollah Zam was hanged on Saturday after the supreme court upheld a death sentence against him, state television reported.
Zam, who had been living in exile in France, was reportedly detained after travelling to Iraq last year.
Ruhollah Zam ran Amad News, a popular anti-government website Iran accused of inciting the 2017-18 protests.
The network, which had more than a million followers on the encrypted messaging app Telegram, shared videos of protests and damaging information about Iranian officials.
It was removed by Telegram for breaching the company’s rules on posting dangerous content, but later reopened under a different name.
However, human rights organisation Amnesty International said he had been the victim of “an unfair trial that relied on forced confessions”.