{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33388",
    "entityType": "User",
    "nonce": "0x3cb41f8cef8913bd3db5a0745f27664278a8a15d9b5eaa513d0859cf0302defc",
    "signature": "0x4653fc846836100d90df8e30d0349481ce80edb0079970f174f280e9b153f7606b004af41861c1858970381d910a25ae9700e5ddc0d5116c1c408b50e4d2e3da1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}