Extrinsic 75996-1

{
  "heartbeat": {
    "blockNumber": 75995,
    "sessionIndex": 1266,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xa22a14c8acce0827b8df228945ef54bcdba841c230f4fb4ffdf6e86c8edade00e9e1af251e8154fd6c10f8c10f6611f83561ab6679bf75c1f38bd20ff0488e81"
}