{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9d71db7b57d489553224795dc91f50aed622366dfac583638a1d92f20706fb44",
    "signature": "0x9a74e210451c8732ed431a4868fb15e3755bac29f253a00c4d5791ee2d9111a164524101a2aaed4a8e7c7b25dc153bc7ce5fc72bd2fcdc23e0576b9ab53d133c1b",
    "signer": "0x9eE8278eD2D464C11c8AA61F1CFF8D02384fEb7d",
    "userId": "631382782"
  }
}