Extrinsic 33270-1

{
  "heartbeat": {
    "blockNumber": 33268,
    "sessionIndex": 554,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x66837ccbc769d99d84bde3810fcd276a210827888ba9897e4e6fe47d9f8da2359fc320553a7a4011aa6d1cdd145fa97b925e76fd48fdc54da8dabfcbd101e988"
}