{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf05c448f9a36ad8d28c7d45e88bdb0af237f31664dd2cb9355b8bd96fdc3487c",
    "signature": "0x717bc2a09b0401e623a66948ed3b818df30f2b861f167c10efb254a2b539637f1d01d2dbb86f5eb260bb93522e4cab7c8506a8f5196acb02dd223c26f53269cb1b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}