Extrinsic 5558-1

{
  "heartbeat": {
    "blockNumber": 5557,
    "sessionIndex": 92,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x9c1ffd787b265fd07633640799cb7e8ba5b0242a2d9b116017e90d26e4be88545dc1e0cc96c0bbe562189e79522affe48ab85aedd4aa87b2116167deb6119f8c"
}