Extrinsic 42211-1

{
  "heartbeat": {
    "blockNumber": 42210,
    "sessionIndex": 703,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xc266f22760c849ba658a82e70045bcabc47565eee721c12aec086e8cc233a32fcdc2fd41ba96ca4e19551c1c9b985c93acdf4de7065213894ae4f0dfa4e33a84"
}