{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "530760555",
    "entityType": "User",
    "nonce": "0x5cc02d6cf342c8b24d23f6020b98fcc442cea85b011006c89389980677c446cb",
    "signature": "0x2dfca47ba22b1c42a7b17819560aaa71f902aae13e3d90348ac9d20fbdcc2fa933eaa749b1424815e21dd1adbc7304734ed2258a5dcd5862343fb5da4585443d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}