Extrinsic 73467-1

{
  "heartbeat": {
    "blockNumber": 73466,
    "sessionIndex": 1224,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6c0b932b3d63b6c8bd1a4aba479d9836b4b5124552da293b65f58f640263b04bf2531e63d4ac83b5285782bbe255e4cb9dc89329209d75bea04740b65b078c81"
}