Extrinsic 29779-1

{
  "heartbeat": {
    "blockNumber": 29777,
    "sessionIndex": 496,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xac50c16dd873c57725133d58ccdc63d98362595b95cc7e73b95a9c11830c7b5c858bc5912cda141e8f917c0f2b98f234d3b2ca5f5f9f17138060ca0174d49389"
}