{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224685891",
    "entityType": "User",
    "nonce": "0xd7a7e9175ea27c522d33d9567bf3f70c12ce52015adc86c03da13d71a98fe189",
    "signature": "0x831ada54270296d76024933eb968bd7a4a34723427aa55b4da4c3177648e6b78460f58152e9acad59e397f4fe311edcf0b93802894ebb57c2b51d85cbdac8aa11b",
    "signer": "0x16d3EfE8AF349aBc9a3CeBDd1C9E93557f40Ed05",
    "userId": "824673445"
  }
}