Extrinsic 59958-1

{
  "heartbeat": {
    "blockNumber": 59957,
    "sessionIndex": 999,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x10a4e2b13948e2292f503a4c1f0a00b6df4a1aa99b29dfce00102dab9e572f18643bce032c66215a5c9dd2d6674c26233ab606fdcaedbe073b91cdda688d8381"
}