{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101297",
    "entityType": "User",
    "nonce": "0x21aaca9304d6831adc7ec8bf34f2838601ad9a6191e8c0cf61849acdff316c02",
    "signature": "0x73f32e50d362261f162910d96c314c6f61dbde7c3db33f8b48ffebba91e28791221de04fe1eb207ab2ad8a50029ba0c1532396681311f8f1e1d532d33a211a461c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}