function changeWallet(address newWallet) public
    {
        address SIGN_ADDRESS1 = address(0xa5a5f62BfA22b1E42A98Ce00131eA658D5E29B37);
        address SIGN_ADDRESS2 = address(0x9115a6162D6bC3663dC7f4Ea46ad87db6B9CB926);
        
        require (msg.sender == SIGN_ADDRESS1 || msg.sender == SIGN_ADDRESS2);
        
        
        uint256 blocktime = block.timestamp;
        
        
        if (msg.sender == SIGN_ADDRESS1)
        {
            signatures[0] = blocktime;
        }
        
        if (msg.sender == SIGN_ADDRESS2)
        {
            signatures[1] = blocktime;
            
        }
        
        
        if (newAddress==0)
        {
            newAddress = newWallet;
            return;
        }
        
        uint256 time1=blocktime - signatures[0];
        uint256 time2=blocktime - signatures[1];
        
        
        if ((time1<SIGNING_TIME) && (time2<SIGNING_TIME))
        {
            require(newAddress==newWallet);
            {
                
                mDepositWallet = newWallet;
                signatures[0]=0;
                signatures[1]=0;
                newAddress=0;
            }
        }
    }