An action is any change submitted to the voting system, such as
The author of this action is: reina, 1KSp6dmtF7EKZyaBpdWFL4qeG8nkMcb7LS
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: 9139498685e653fc405cb1e2a1281af8b03f43491027a72a7ba31366d9d018e8 cast-member-ballot name imaginary_username address 1KNvUAmquf9v2BgyrTsLjE8GdKwu1PaJed by reina answer reject
This action is part of a multi-action and only the multi-action is signed.