An action is any change submitted to the voting system, such as
The author of this action is: Daniel_Lipshitz, 1HK2S5iXZZ4TYt1osvaLY6TqJMkkjEdpzA
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 4d26ecce1c01eb4279b9721ee5b52931f5e14012f0ce95f180a8cac3bfb712d4 by Daniel_Lipshitz answer (spoil) # proposal: BUIP107
Signature:
IAPBVu5qR3NFE540K7cgR1Qpyl2ECsQ33bMtahv81RaD3LFiIn0JX7ioppEYkgGVMR1LdR+3tX4HHyCeh6T9bsI=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.