Extrinsic 48518-1

{
  "heartbeat": {
    "blockNumber": 48517,
    "sessionIndex": 808,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xf41c38f23489742c834a7a2cd91567df7bc405898798fb47c0324d15dd00a9494111a4584a2f8f2b1ccfe4725e29959afe68ab1cecb84e3c7398fd41a6d30888"
}