Extrinsic 173047-2

{
  "heartbeat": {
    "blockNumber": 173046,
    "sessionIndex": 2884,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x30d9860e76d6f62b1b118ab6a8b065cc6e5ab2b648611bedc1c905bf0258e86e3a6846f9a8991670aa4a2440dca431a472d889b70823bdd36dcb9932ff2dbd82"
}