Extrinsic 147344-1

{
  "heartbeat": {
    "blockNumber": 147342,
    "sessionIndex": 2455,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xd693838a3811ddbdd7bd91e5e4d47ce98e5eb0721b471155c9b30ebaf9947b2bf1e55908f2c69a9c6032d2cc1b686b685e12bc10f4d4cffccb818a9887432785"
}