Extrinsic 7669-1

{
  "heartbeat": {
    "blockNumber": 7667,
    "sessionIndex": 127,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x7ae0dbd203969ec424b195b45a71c2b6d4bedc69ea0dd5095220249f5333cf1ea75a260bcb55ce8c8bd801c8361a60901f517f1ff82be8e57965157b8f6dd788"
}