NET_ID=42 RPC_URL=https://kovan.infura.io/v3/a3f4d001c1fc4a359ea70dd27fd9cb51 PRIVATE_KEY= MIXER_ADDRESS=0x5375776Da34366b9A4C8a44F6303B44b5Ee2F07a # in wei DESIRED_FEE=10000000000000000