Extrinsic 17429-1

{
  "heartbeat": {
    "blockNumber": 17427,
    "sessionIndex": 290,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xea4a08ae3145860f91d5bf0507a0260f129f94b6a727d91cdaf392009906b73a3f3be5c9b87c348b1fef42cb65b2ed8d4cacfe902e51faba36fea17b01de0584"
}