post https://api.shasta.trongrid.io/wallet/unfreezebalancev2
Stake2.0 API: Unstake some TRX, release the corresponding amount of bandwidth or energy, and voting rights (TP)
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, and this interface is required to unstake TRX which staking through Stake 2.0. After executing this transaction, the users need to wait for ‘N’ days, then they can call /wallet/withdrawexpireunfreeze to get back their funds.