Extrinsic 147348-1

{
  "heartbeat": {
    "blockNumber": 147346,
    "sessionIndex": 2455,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xe28e2ac2610b994b40a2eef03b23984089e4e03e02a6ebe7392e189dfccb7d78f2ed6326e9ee3de6ce47c5c5e65c514a24279a9930a1513109e564cecbfb4385"
}