Extrinsic 76808-1

{
  "heartbeat": {
    "blockNumber": 76807,
    "sessionIndex": 1280,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf28c19d39dcd2e80a936c5a76cb553d85f851e3f62fdc8755418e1d29435973c87fd6bec894daf2beb9cd26c0c2f5e9a338a50f98d68ae8825400569770b5a82"
}