{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4510",
    "entityType": "User",
    "nonce": "0x2516f1092d1c47e523f8fa44fa1b03b4b4226f731a9ea1222259839e9c5c1faf",
    "signature": "0x562470d3032c60a387da7cb28829e7fd28288569ca2d003aa1aa703c8c63f8861700b3359c0ba00493f171be2051b8e6672586fd02be3283f77844ca9cf10d9b1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}