{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x9419cd5a1cbdc15eaf4e7c5c564794b3e6549a5e817bf4fb1fe27d8d52f1296d",
    "signature": "0x1f2c168dedb00b9d9962292a4a618010f54c55c02416b84d5ecd168c20b7850c0008326013e617dc08d8ff967189c2416eb78e126020a1f400d88207a2db852f1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}