Extrinsic 175363-1

{
  "heartbeat": {
    "blockNumber": 175361,
    "sessionIndex": 2922,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xeef21c6f9cd5926f2853b2a42a1d75785d396213e47ddd042d7b8a5775d3c6418ae5b454348e89f6aa64690f3632fd5393e4d2a8032aacb67e5e494cdf7f3a81"
}