Extrinsic 72885-1

{
  "heartbeat": {
    "blockNumber": 72884,
    "sessionIndex": 1214,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6c6a6c2c39f3bd88b6c3407e77832ef41b476598659df52229509fc546f82265de760e5ee20536ac81986352c4f3e5ccca36eaa04cebe6ce1ab3ecef3cfae28e"
}