Extrinsic 174162-1

{
  "heartbeat": {
    "blockNumber": 174161,
    "sessionIndex": 2902,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xdcdeb3e34c4aff665cdb89214aac03d5ad845cbdfec4f1951a75cc79b824c42c6c49152f22e34ca086292e8845c15314b6bb04ecb72e8ff61198d687a9ece283"
}