Extrinsic 33973-1

{
  "heartbeat": {
    "blockNumber": 33971,
    "sessionIndex": 566,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xf2490c66e669616ad9df1eca383798a78d83be72c76e28477d6a684a0086e30f0eff64fee257c27d126fb27817ca31a82e9a6de3c8f592862aee61fdd9884e88"
}