update API docs please. no idea how to broadcast a transaction correctly... this is what i try and it doesnt work... cannot decentralize without propper API docs

curl -s --data "{'expiration': '2020-03-18T21:55:39', 'ref_block_num': 24297, 'ref_block_prefix': 3227590836, 'operations': [['vote', {'voter': 'maxsieg', 'author': 'gtg', 'permlink': 'stop-playing-around-vote-for-real-steem-witnesses', 'weight': 10000}]], 'extensions': [], 'signatures': ['postingkey']}" https://steemd.minnowsupportproject.org/

im building a terminal frontend that can run over tor network
please help, ive been asking for weeks now and i either get a "idk" or i get completely ghosted whenever i ask