Extrinsic 53680-1

{
  "heartbeat": {
    "blockNumber": 53679,
    "sessionIndex": 894,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x04537dbc3c47c44d61d976c0fb22c6fb89f169e306ed944e6f8258cad26ce6087200c2a9a3795932372dd10ddbea7994a0b7f5192247b560da432f9e67f64d8b"
}