Extrinsic 172482-1

{
  "heartbeat": {
    "blockNumber": 172481,
    "sessionIndex": 2874,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xbe1604715b4a6a1644d3cb1f8018b93ba63766e32141796eaecb8412fd65ec462b32752ca4a163884b6d65e6a1c334437c15c6a2874d05097d4dc973492f368d"
}