Extrinsic 159562-1

{
  "heartbeat": {
    "blockNumber": 159561,
    "sessionIndex": 2659,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0a4fea76f8c75f86375be9a0e5a1af5ec8d10a1502199050adb1a8231404d66747701e01af578a3b48879d06fa7bca4e041c24bdc947cc544d650b7018d4848a"
}