Extrinsic 73275-1

{
  "heartbeat": {
    "blockNumber": 73274,
    "sessionIndex": 1221,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x14f9c2bdb93af023f2220fefdbe6f0de7cc3c24e0875f71c2b5d0c488770c127165ec31d141f420fcf7b5034751fc8636543df3b6f4f55200b17e79f9233788b"
}