Extrinsic 135331-1

{
  "heartbeat": {
    "blockNumber": 135329,
    "sessionIndex": 2255,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xfcd869ef40ae94dc1a028c02f0aeb8d993fc6007224dce40683a527f86bb4760c1df2c98a6407af681bed7bad6f1e6f15913174172a90c43eb99dd50ba85cd8e"
}