{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5e1f9b6891fd1ed5920f96918529b35839b054c4f7a2368295af741c4649426",
    "signature": "0xf704c34bb5668c12e71b9dd7c2bf8581ea933b2e9c986fb1b222ce676f741a25718b30c79713ac4afec65e3719e18674f421a8a78ff17520b939f6a8e7db04001b",
    "signer": "0x0203e5FA12FeeeE7E3b6A6d22DfBdE7885B5c7C4",
    "userId": "929764062"
  }
}