Extrinsic 29675-1

{
  "heartbeat": {
    "blockNumber": 29673,
    "sessionIndex": 494,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x16aa343f1b4087c9b365ecd5cad51d85c5e9b3f27cf6607c49c5f7608c6731024f32f8fb79f87a9ddaaefafd0b739361a78e323b77b6d7a7ae3b314de70dda82"
}