Extrinsic 178177-2

{
  "heartbeat": {
    "blockNumber": 178176,
    "sessionIndex": 2969,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x04d3ab343790b8c9d50bd2303d8920a042849f8f1948d3528c55a0559999f56ea18e9ebe548fe8ee396db35bac7bd99c9d1955538e327f19015c1ed8df793089"
}