{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787100055",
    "entityType": "User",
    "nonce": "0x0e5480b8cd0cd728e1dbbb7d7e9ec10ac146566c034c9d701aaf239a88bf5e53",
    "signature": "0xaf92929ae701000c70d98b9ef1b843967b5e0bca38f255f93500a93520aec3d510052487ee99a4db3c72f19873dbd3c53fb173a7da66a8209081850fd0002ec81c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}