Extrinsic 143137-1

{
  "heartbeat": {
    "blockNumber": 143135,
    "sessionIndex": 2385,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x04c1878a6a02b9569499af6e52d8a1378ca91c7e9fd94bd4635de7e064f31848e5bb3d1c277cbf8d41fbcad645d962f24e25dc5622c2e2dc97312e0615d7e08c"
}