{
  "@type": "did:sov:SLfEi9esrjzybysFxQZbfq;spec/tictactoe/1.0/move",
  "~thread": { "thid": "518be002-de8e-456e-b3d5-8fe472477a86", "sender_order": 0 },
  "moves": ["X:B2", "O:A1"],
  "me": "O"
}