{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x1b40f34bb2574892204063c3c8a6d24f0c64fdc3abbbdd03800a9ebcb4b50d66",
    "signature": "0xcc388e3a9734bddfafdf283dd8b97853c13898ba227dbb6f5690012184dd84747dc435c7f698d357d52b5d2013a615ae0e70e7c15dc6cdba25f12166606335741b",
    "signer": "0x344Cc6Cd6326A3Fc46e2f789e02111af483Df673",
    "userId": "980331"
  }
}