{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33e6da934bb65a52e994bdb4d55ae0ed0deb04251ec07562bf9de47b2dc09d0c",
    "signature": "0xcfb8d06c6af8c92ab8a234541e77c5c02a1a47c70b7eeecb9e858ad6b65b88a21c76d478884813d05611e67469f44bc5173e948f1979a7386c7ec8eb7e8425af1c",
    "signer": "0x53718aA7EA6c25848BBbf8A09FF53F200cAb49F2",
    "userId": "936611972"
  }
}