An action is any change submitted to the voting system, such as
The author of this action is: Christoph_Bergmann, 1BvayiASVCmGmg4WUJmyRHoNevWWo5snqC
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: 4e6471c8af35dbd4866895c2d40fd22738ccfcebe5feca6dd96d0e9896851ec7 cast-proposal-ballot vote 14aacb15b2484e66a586c49e2079a04090b14414686cbd4e484686ac7268dbd6 by Christoph_Bergmann answer (accept) # proposal: BUIP110
Signature:
IPWcU9LlzbT2EeGSA1PNi15p7t5R5LnL1X5DtWQtPn14SRgLzj8A8LMODflWdXxPRW+NNU/R8E1Swb7cHqdx2ZQ=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.