Extrinsic 144467-1

{
  "heartbeat": {
    "blockNumber": 144465,
    "sessionIndex": 2407,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x589f08edd67eaf6412415e1f9a7d7398a27267c3d6a9aed6b29414f2987f83128297373bef3f1fee4e33738b89e7c5617fba3465dcb1db371a3e10481590718e"
}