Extrinsic 143678-1

{
  "heartbeat": {
    "blockNumber": 143676,
    "sessionIndex": 2394,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x54b15b74bfee9715b2b15dad2630e176885012f89fd61097d04bb4f1120a075e9a81112f0a5f5b0d3c25a2de920ef90db5cbc2f565550754c1b4d4b2b4c83e84"
}