Eth Sign Transaction

Parameters:

1. Object - The transaction object.

   from - The address the transaction is sent from.

   to - (optional for contract creation) The address the transaction is directed to.

   gas - (default: 90000) Integer of the gas provided for the transaction execution.

   gasPrice - Integer of the gasPrice used for each paid gas, in Wei.

   value - Integer of the value sent with this transaction, in Wei.

   data - The compiled code of a contract OR the hash of the invoked method signature and encoded parameters.

   nonce - Integer of a nonce. This allows to overwrite your own pending transactions that use the same nonce.

Returns:

1. Result - The signed transaction object.