Extrinsic 77739-1

{
  "heartbeat": {
    "blockNumber": 77738,
    "sessionIndex": 1295,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x8017e4941f0e636a907a39129494af9f98f217a69dec8dc1c7be552ca3c1af1c3a3b1b28f9c7c063b1a14dae5840739793e4515a33bfd7f38ebae39204c4bd8e"
}