{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107344",
    "entityType": "User",
    "nonce": "0x882d83a7150e9efc428599cc04619cee76ccfbf183262982835b0131ec4bbcbe",
    "signature": "0xb38bd2b7da06177cc1eddc48957d368f9ad0fb62f3a7a20af5b8be21daea577a4c302c0f45462f6ca66355c5f3d870cc5f454d890950ab0d4a6e5dd31a7ef8351c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}