{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815933093",
    "entityType": "User",
    "nonce": "0x5cfb0d5fa58314cf8693b7ee52f7b6dda8b7a8dc2a252dd93fed4bbc4ce94dce",
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    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}