Extrinsic 9468-1

{
  "heartbeat": {
    "blockNumber": 9467,
    "sessionIndex": 157,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xfe6894509614e83ae1e190182b728e32f0179fbe7af6e2490f7dd6d2c22aa95fde499a3742102ba1404d2b01058efb0159fc074677b6254ad91c3ffa31de0780"
}