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: cdb3de1a02836ad7aed816ac9c6245b5dcc2b41345865b7ae3026a29ac290758 proposal-upload file 74644b8e4a1bc5c15fb87b417696a79dfc65c9547ffb2f02a7e5f0dfb391a9ba by solex
Signature:
H70F6oBX8N2aSQkZRUEfZC2l88NixQlsYO/lY5fMDiv0a/qtIAG6TNlj4RV6GeWtIOGV3gIb4aoca1qnM0uWNQw=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.