{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2411",
    "entityType": "User",
    "nonce": "0x452aa768bf8db337a31de6d7f84006220c8ce33b3e0acb3db8a3d1f41f655ae9",
    "signature": "0x1a444c714cef6845a8c6aa0f278ebd4f5e37498a85b00662b24183103302a5b8149aff30cfbdf5726164cfe9b84eac7a43669e6329ed633dcee227b41d8ba4181b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}