Extrinsic 2441-1

{
  "heartbeat": {
    "blockNumber": 2440,
    "sessionIndex": 40,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xf0133a762226cd3d13185d4a7297a4bc156eabe4f45650043fbe490452abb4365dfe26810bc0d750e3e6d35f5eecab1c11a765de9ed0915a4d7489d630eb9a89"
}