Extrinsic 159279-1

{
  "heartbeat": {
    "blockNumber": 159277,
    "sessionIndex": 2654,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6e2fe1354317d1dcd56399cb3ff0e4f5c5371389b8b55991da3717e409f9086a1fb17a6dc2fb87c480dbe51a2dc093fc85470352100f1fb19d276d8bf95f5d84"
}