Extrinsic 67536-1

{
  "heartbeat": {
    "blockNumber": 67535,
    "sessionIndex": 1125,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xac9fa8fe233723754de69153d0628f4990422f2e7ecfb220d80ddd9854702d7b6fa3685cf89560d3d4799752e08a5c7e6feb025dab32ccb96a1423b0b3d9b08c"
}