Extrinsic 136454-1

{
  "heartbeat": {
    "blockNumber": 136453,
    "sessionIndex": 2274,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x2c779253f790d35c9dda325e5f562e909d4924e3db49b19fd0315aaa5c55193fc0f15d32befcd2be1682746236e688339d99e2032ff85941367cc837c44bf685"
}