{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0xbcb682a20e273179a063823219127c0cb7888a9af7f0d90b5df5f2529193a485",
    "signature": "0xe05948e0f1f569aa8f953941ddc9587cf5441f5c5cae20d31bbaea065cc2d21c6e17e9085f2aebadabb2b6c0892e0224a4efbfdfb50d3eca34a094ff8d2436a01b",
    "signer": "0x7495ffcEA4B233ca42224EDe45fA94bc245920C2",
    "userId": "313045689"
  }
}