Extrinsic 13350-1

{
  "heartbeat": {
    "blockNumber": 13349,
    "sessionIndex": 222,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x2c3d6516bda273b25dca6e0b99c884d248a029dc49a7d3f3952f9367ff286f606aa12bb4aca3ffebfa0031024b368ebf2877f6cdb3b9e83bb8b367c24d688f8c"
}