Extrinsic 11920-1

{
  "heartbeat": {
    "blockNumber": 11919,
    "sessionIndex": 198,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x50c981c04f204032d1371270fb9242ed26b5200fe70866b2ac222cc9764c7f6af17b72fe1ba37f3e2c2163e7ecadcad15c522e1640c28a3a93c0fc122de69182"
}