Extrinsic 54523-1

{
  "heartbeat": {
    "blockNumber": 54522,
    "sessionIndex": 908,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x48b32d5b5c993a6e4f69c0e2d99e0e85487b84fe1b7b1e0bdb0c89d374464c0717be1e8d5ff436c52b9698f2f66f6dfea96a06411eb1d700f0ccae76c5309280"
}