Extrinsic 40179-1

{
  "heartbeat": {
    "blockNumber": 40177,
    "sessionIndex": 669,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xaa6310c2d8baea6a45f01da85e647061793b2d2f4c99fc8860ca09dd179e3425f47391c3e1ecba7e55979202b159db61c950bc37210729f9d2000771bf372b81"
}