Extrinsic 81103-1

{
  "heartbeat": {
    "blockNumber": 81102,
    "sessionIndex": 1351,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc6bcff68c8507c8ff13f332a9743c9c2f9a76057b36bec58bcd399e19f7842286590b8a9041da941df61a8b942045ad66615ecd21c583eaa8e288cb8238ae988"
}