{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89967c96e64dd8b228a5a19688c624ac4257ca59b2e40c85333218d356cef9b7",
    "signature": "0xa4247ba9aa4231fc33ac4281dae128d7573b91233aff772790948ab9612bca65021423b828b2d273c744c67545f63ac1251fb4a97b9f5de911fff0b1bf5a578b1c",
    "signer": "0x9ac9E9693AC87D8C5a1dAc686f36FE82547496f9",
    "userId": "311488849"
  }
}