In last two days I have earned about 50 EUR just by watching videos about different cryptocurrencies and answering to simple multi-choice questions. One has to be verified user and on a waiting list, or invited by a user who has already been selected to qualify. To get verified, you just have to upload scanned copy, or take a capture using phone, of national ID, passport or drivers licence.
To join if you don't have Coinbase account already:
https://www.coinbase.com/join/lindqv_lj
To earn crypto:
https://www.coinbase.com/earn/EOS/invite/7jx4qps3
https://www.coinbase.com/earn/COMP/invite/jw5nr9gs
https://www.coinbase.com/earn/OXT/invite/85hv4xyp
https://www.coinbase.com/earn/XLM/invite/c2rsdyhx