Wrong result

The returned result after executing `signTransaction` does not contain all the necessary information about the signed transaction. For instance there is not way to retrieve `return_value_data` (_transaction.processed.action_traces_)

Start by locating the signTransaction entry point and inspect how its returned result is assembled. Compare the result with the signed transaction's processed.action_traces, especially return_value_data; done means the necessary signed-transaction information is available through the returned result.

Written by the indexing model from the issue text.