{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1708968",
    "entityType": "User",
    "nonce": "0x19024ab5233e2e078b5bac191ea27c79fb2d52223335580272c941d23d06803e",
    "signature": "0x8f69938d395fdbfbcb59e0bf0f16cf54840a5ca9f7cc62cc6ff4ba974b166e7c73021628cfc43a9874ff638a2a970c4e166822afc5892fd1226395f5f4811dc31b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}