{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447",
    "entityType": "User",
    "nonce": "0x88d8927c8cb855b097892a6ae8c0633066c568479c35e71c73953228db5e7dbb",
    "signature": "0x1a282c4167e2128bf8241845678ce50339000ed174c33c801b2c618de5d59f7959f351d36cbf632f3522874553336aabc9c969e94316daaf03ce0c3ab83ee0051c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}