Extrinsic 138219-1

{
  "heartbeat": {
    "blockNumber": 138218,
    "sessionIndex": 2303,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x806071169db241fbfd7ed9e37e241591039407c83766c3329a8a0d16bb79b16d4a4864db88c65897228f89c7ff5fc2fe2a5f1eb05b0da6502b2d6c9888df9188"
}