Extrinsic 120572-1

{
  "heartbeat": {
    "blockNumber": 120571,
    "sessionIndex": 2009,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc671f4ead5681c607cca72f054149f3c4173759bd568347a77333e806b0b9106275e2d9939da1f9a39a685ce41cc17534afe5527fabbd0d43f1470890a64608d"
}