Extrinsic 73360-1

{
  "heartbeat": {
    "blockNumber": 73359,
    "sessionIndex": 1222,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x74a4b996d4ad8c0df628460507bee4ddc1bf897fcf42f281401a16273d95b365e7483016688216b67404fcadcb94b84b01e289c0c2d4e84b18177d2c8d95d086"
}