Extrinsic 14688-1

{
  "heartbeat": {
    "blockNumber": 14686,
    "sessionIndex": 244,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xc428220e59bd53f86dbb6e317b075ecf0924770cc6963fc07bf668e73fba7a384f78da36e550c83068e68803ed68172b47d0cecb2386612cf281f21106ae7582"
}