{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xfbc60d137529be63234138072690655bb0a0cd8bc5f93273c0a4fe3e2686e87e",
    "signature": "0x4254ca25294c315bdf9726d2a455bcd1b7b9c6c71e85503f4b16c4028a8c340a5112654b8db30c25dfe926a55490ca3e75bd840510f61fa8c52b1794fa2b9fe31b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}