{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342118",
    "entityType": "User",
    "nonce": "0x7f42d4cf5b12a07ce44ae6c8350675ffabdf8cd7fd988db44107c0124bdfa31f",
    "signature": "0x331fce54bc5a41e7ed4dd7f33b7b1edb430250a923eef7c1fbbbe87bcf06f43953c1148c15440ab891fa1da78f98165ef3127465989917acaf8631f5215580881b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}