Extrinsic 135155-1

{
  "heartbeat": {
    "blockNumber": 135154,
    "sessionIndex": 2252,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x3c1592758dc32422e4d4ee9e69d615f64bdd2ef8cc06c929069812077641894e19fb72748879fceb3d914469912435e0bfac56b653cb1b53b9cb3f705a42bb83"
}