Extrinsic 45314-1

{
  "heartbeat": {
    "blockNumber": 45312,
    "sessionIndex": 755,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x50eaf09ccaedccc2e3c05a1f4467c7b0c9d3ab36b183d07e45b725a7e62a8653fa55394b6b4f1f9a08a4201c2dbdad577147ec12b88cb26c8d59c65ffcf82a8a"
}