Extrinsic 179312-1

{
  "heartbeat": {
    "blockNumber": 179310,
    "sessionIndex": 2988,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x5c9051fcc7089c7da3fdad9b652290865e5d1a6197bc106f982634c44fa1810196860b3fdf8a4fa2ea1c98f028eac9cde952cdff32bac31fc2f0593dbbaeb688"
}