Extrinsic 23447-1

{
  "heartbeat": {
    "blockNumber": 23445,
    "sessionIndex": 390,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xbca033a6b26070995424faa29e7622826537a3d469f01b7c5f3ee1dcfd97fb1c13792d70a2281c39158be505c281b3738452c7d8d33a667dc680af39b1ee038b"
}