{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x8905672d57c1f898144654311e28340b140a4b5056972ed9bcc7f78f9192a2d9",
    "signature": "0x80ea0662303a1d0b0e0459c84a8b4ea0a1bff49ce7f48e61b945a55a5c55801507133cf9238553df8f886df44d2e135328b423491112037d9b6bee2e239102091b",
    "signer": "0x1424770FcCDe606D6A31FfD2fE29c6a1Ab15B937",
    "userId": "949198899"
  }
}