Extrinsic 49521-1

{
  "heartbeat": {
    "blockNumber": 49520,
    "sessionIndex": 825,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x588d16e053eba03ab80030b16c283b304eec91d1a624223fb1bca5a69950e85ea1117c60b472ac8dda1ed0c3eac15f8ddbb5bdad45370ee04e792509dbce488d"
}