{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5ae789b57cbf560067fd96117feb9fc87633b17b9049ce99ede9ede112dc9e5",
    "signature": "0x92673686e71c37b15445212d53fdbf68f77cd3bb8222ec9f10a97f7143658434179f0ffa96fc3f6954721137811b9963a6e3ac70ceb045be1201332fdc4969791c",
    "signer": "0xA3001241cfDdDC4b655c668a27d7cEc490f1cF66",
    "userId": "147669187"
  }
}