{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "205075370",
    "entityType": "User",
    "nonce": "0x4021621dc2cea5f0ef786ef55b6bb47693cb8797c861598132f26d9f67e95518",
    "signature": "0x9e925b796851519468c33e56028095c180bc771b97afd0c8421c6f5b0544d6037d3547092938f39d99c7ada54f5e94e778d4f3344fb4240cad51f7b8d45d0d5a1b",
    "signer": "0x6CDd0c0FFBA25fF3A1e67aFb0149c464d2220E65",
    "userId": "675469944"
  }
}