Extrinsic 157242-1

{
  "heartbeat": {
    "blockNumber": 157240,
    "sessionIndex": 2620,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x36e6c7468cc5c4c39b9c4d3f62592e7c3c9408d3369bbefc108b44ccf0c95e5cb31483ee6577f5a38b18fba1d76308588c6cf20cc5502add6d5ada195924be82"
}