Extrinsic 81377-1

{
  "heartbeat": {
    "blockNumber": 81376,
    "sessionIndex": 1356,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x3600d5d10bba60bdbe2a96b126888666240e49ce385187ea0d7b2c52fa915b421c9ad8ba0b98befc84aa706249b964b94ee64743d303760a6d43465f98dc5585"
}