Extrinsic 43988-1

{
  "heartbeat": {
    "blockNumber": 43986,
    "sessionIndex": 733,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x2612099471ff4cc7cdaef60d7398cd88ebbd4d34626522643e88b70d3868684c73debfb2b645107bb0cc5b75f282ccea3286dbe0d3fc721e70a1bcac00c4348c"
}