Extrinsic 48889-1

{
  "heartbeat": {
    "blockNumber": 48887,
    "sessionIndex": 814,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xd41018ffece6fbc0e53897803a080063be4287b6f6465e2dcc620798b25fb0600d9844e02d2139a6572da65ed1f81195c76420f1953534380e42c79ba3b44283"
}