Extrinsic 30766-1

{
  "heartbeat": {
    "blockNumber": 30765,
    "sessionIndex": 512,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xbaa6f0ae4389e7273972a09aa92e8f495ae15e5dc71193e54981743d1e2a3742fe36da906b45be93038f1670831fe9278713653dd82231693a709ed0a977628f"
}