Extrinsic 150693-1

{
  "heartbeat": {
    "blockNumber": 150691,
    "sessionIndex": 2511,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x12ffe10748bf029cc0ea92f04602f8018b6b717d60da07d474ca945b86c2745e1c793d818bf2802e7c2492bc83d800224c489ccac552ea9bc78af629fc61b680"
}