Extrinsic 16179-1

{
  "heartbeat": {
    "blockNumber": 16177,
    "sessionIndex": 269,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x32215e33d469b71d52ed54de52a7284a8032ed38516828759a4b26af7dd9c730b247959ee6d60814b33a1291e2b217acc088fb247cb3d7ef9adb3ea12f66558a"
}