Extrinsic 54339-1

{
  "heartbeat": {
    "blockNumber": 54338,
    "sessionIndex": 905,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe6898e861777cfc749538fad469e3761672c4bc594e34a15a94beaf376b34b13f8edbc75261be35ce0f60a0954efc26d4898792fd1b8d2777d17793af7e4ba8a"
}