Extrinsic 159976-1

{
  "heartbeat": {
    "blockNumber": 159975,
    "sessionIndex": 2666,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0af8fd702f6b55db06cfe4d388e8b93bc8f8f151f233d3b6e91c9ce96ca4ea7aa818a05907c172e125852357334859bf62768b951f198633a80fa0dcc374cd81"
}