Extrinsic 78575-1

{
  "heartbeat": {
    "blockNumber": 78574,
    "sessionIndex": 1309,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe476164c1d5735b79cd35081404408d16749438b549afc2a7b90a18bd755eb7df316280bbc60e274257f20f5e033cfc5875a518c9157a02664a94aa72134ca85"
}