{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "469781621",
    "entityType": "User",
    "nonce": "0x693e3691d9dad9d140b4b417baa839a58f804cca43fa4189a04b5436035bd6c5",
    "signature": "0xa1aa3e75639cd5a37313f5c0acf34678d2927445abb2dd76160bc0cd0b44ccfa0691a27b3572437681bed42c63a5b2b61fc1c52b1a46e67441f749c8bf9dda4d1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}