Extrinsic 23963-1

{
  "heartbeat": {
    "blockNumber": 23962,
    "sessionIndex": 399,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xbaa0e8315c0afc7c705f60f00ef881133aec7619e62e8e6ed3768267bf71ff38fa0b4a221c94a889578617508eb55823c79651f31703d1d996074c806570668e"
}