{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0xa21f0fc0f2196a5e78b7bd1a39b524dabdd14dce8f06a80287e38234483b45c7",
    "signature": "0xbafa2db68b2c9d8812e4d31c959e6774d95802d66c5ddf5b8a0703f38fcbb31d7591647b5c9affd8c17f8ba29ba11218925590b813ba9e5ea52b89589f002efa1c",
    "signer": "0xf03E2eb658f4057Ea4255CF34BcE6009938B86f6",
    "userId": "904522318"
  }
}