Extrinsic 55765-1

{
  "heartbeat": {
    "blockNumber": 55764,
    "sessionIndex": 929,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x007d157b14f39cb1fd7862f7c209d1c29273bcebcf256d1923e7245774fdb35515eb3bcfa1b34c234b91fd47ad96c43d872a4d6725482df7ef20915433238d8e"
}