An action is any change submitted to the voting system, such as
The author of this action is: solex, 15TiujYmnHa33fjEnasBBm1eWcGx9YEXPL
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: be3c66388058cc34d9e899e516e8ed808b294bb3d567008f12727ed5d8b5e3c0 proposal-upload file 6aed775244df15c6c5a6af52c75d4a9b9ea98ddd3a0172863690cd1593fc6685 by solex
Signature:
IMFfj8aXWCyk/Nybp2DBl7ZBcMAsgfJaukoQlFBAi8G6efY9gNaEp8fWbnS6IsltBCR5Bfys3t5cDU8FawYZarM=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.