Extrinsic 10457-1

{
  "heartbeat": {
    "blockNumber": 10455,
    "sessionIndex": 174,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xd25ff546adc8dc84ecdb0cc916bd111383aa3f8f4d74382ec7d214616918f36ee8b582d211d2c6c896e6d9b6a387c0def5466a4f4be85b8a4efbff94be3f9983"
}