{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385517",
    "entityType": "User",
    "nonce": "0xea7dc3baaa80aec4b0ba02a95603ac482c01fc4c538ab60ce5c332c441096bb6",
    "signature": "0xfb20d4c331d3a7c8c5f8249d7d5c0e242b6d03a0c86fbbbeb8f0ad5e3545397509579b1435c152ebab116eb6998373d7ea9ebdc811da77cd595025725d5342671c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}