Extrinsic 7178-1

{
  "heartbeat": {
    "blockNumber": 7176,
    "sessionIndex": 119,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xd8e6e8ffd610601c6f8bdd878b5f6af147f4b770e7c133c979ebac6473026042dae6a21bf19e87c113078548cb51cb7e23e34393752494b23696b4c5dc38f480"
}