Extrinsic 10477-1

{
  "heartbeat": {
    "blockNumber": 10476,
    "sessionIndex": 174,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x80e5bc4ff1fd311ce6b328f147a2e701769efcfce02b3c078724570fd82ae56723c04c7ed22cccb3574cdc2700312d3174580b2eebc1acc33bff8bb0efe1bc82"
}