[Nubila Launches $NB Staking Activity with Annual Yield Up to 600%] The decentralized physical oracle project Nubila has officially launched the $NB staking activity, allowing users to earn up to 600% annual yield by staking $NB. It is reported that this $NB staking activity offers two strategies: a 30-day flexible staking option, focusing on high liquidity and rapid compounding; and a 180-day long-term staking option, emphasizing strong conviction and amplified rewards, with an annual yield of up to 600%.