def METHOD_NAME(sender, recipient, nonce, amount, data):
   tx = {
     'nonce': nonce,
     'from':  sender,
     'to':    recipient,
     'value': Web3.toWei(amount, 'ether'),
     'gas': 2000000,
     'chainId': 10,  # Must match with the value used in the emulator
     'gasPrice': Web3.toWei('50', 'gwei'),
     'data':  data
    }
   return tx