{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54708",
    "entityType": "User",
    "nonce": "0x82e28eeb9eac4ae3ccaa21809e707da9093a1fa24c2a6653987b216a05245484",
    "signature": "0xfb47fdd55a0ca7ec3c991ac0bf313c7d9e8a336585097e19b9ee645698f1b31844da1cfa6c1c8251df930f8d9378e6516429cfbb18feedec8326e17d794c17b71c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}