Extrinsic 174945-1

{
  "heartbeat": {
    "blockNumber": 174943,
    "sessionIndex": 2915,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x38ee5b58fd564427736461e0736cb56540b66387f8ae4e7b213660fd8ec10a488648cb821447593048c64b2758d439c4c03b47187079958c248779528a805682"
}