post https://api.shasta.trongrid.io/wallet/freezebalancev2
Stake2.0 API: Stake an amount of TRX to obtain bandwidth or energy, and obtain equivalent TRON Power(TP) according to the staked amount
Note: Stake 2.0 mechanism is currently not enabled on TRON mainnet, and the relevant APIs are temporarily unavailable. Stake 2.0 needs to be turned on through online voting. After turning on, it will not affect the previously staked TRX. Users can still use Stake 1.0 Unfreeze API to redeem staked TRX in Stake 1.0 stage, but re-staking must use Stake 2.0’s staking API.