Extrinsic 30276-1

{
  "heartbeat": {
    "blockNumber": 30274,
    "sessionIndex": 504,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xa2ff7242c99460fda500a80e2e32cbd559637fe3ec9a8e7125c29438b4cd2e0c97dd43cea3da9034bf88dab4ecc06c642a99059c0f033f1e9f2891a8685a458c"
}