Extrinsic 50552-1

{
  "heartbeat": {
    "blockNumber": 50550,
    "sessionIndex": 842,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc8ddd83fcbebebf33f477cd72a03f4df641acfd83e627f15f783f688b325154054a3a165938d4dcce9db5728af3d6598a337fddb7738bec794f1d109b7f62783"
}