The escrow (hot wallet) is the WEN ecological application system wallet, which is used to entrust the system to keep the assets used for participating activities.The assets in the escrow can only be transferred to the blockchain wallet currently bound to the account, or transfer to the usable wallet to participate in the activity. It can be ensured that the assets that are kept on behalf are not affected by the transactions in blockchain wallet.It cannot be transferred directly to other wallets. It needs to be transferred to the blockchain wallet in advance and then transferred to other receiving addresses. The escrow wallet is connected to the user account and is fixed. It is not possible to change the escrow wallet to other accounts.