Extrinsic 123339-1

{
  "heartbeat": {
    "blockNumber": 123337,
    "sessionIndex": 2055,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x80fb8137c93cb8bffb4a214d40cf5ac167876e4b0e7a8c7815781f86a6a1df3887dec54e07ff65aa97a76a89c112860701920c9b14a7f230981ebe8aa588c582"
}