Extrinsic 23361-1

{
  "heartbeat": {
    "blockNumber": 23359,
    "sessionIndex": 389,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x8ec742737a320ad03179aa32cb07f3b662d99565c99ce5e4ac71ff9abbed5c56afac2c8a34993f4b47b704df8d71f405704a43d9a8da47b921a42b0ae216fd8f"
}