Simply log in to GTA Online on PS4 each month to receive $1,000,000 in-game currency per month. This is valid until the second half of 2021. So if you log in every month at least once, you'll get at least $12,000,000 in game currency which is worth around $137 real money
PlayStation Plus members on PlayStation 4 will get GTA$1,000,000 (deposited into their in-game Maze Bank account within 72 hours of log-in) each month they play GTA Online until the launch of GTA Online on PlayStation 5.
Rockstar Games are releasing a stand alone version of Grand Theft Auto Online which will be releasing on next gen consoles in the second half of 2021. PS5 owners will be able to play this for free fo the first 3 months after its launch.
Mod: This part of the deal is removed from the title as (1) It has no dedicated start date (second half of 2021 is deemed insufficient details for upcoming deal) (2) If it did have a dedicated start date it would be further than 90 days away which breaches guidelines. More
As if we didn't already have enough mk 2's flying around.