{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "123",
    "entityType": "User",
    "nonce": "0x28693c9ad1a99c2d586f3307432a4dcb270c271853066b32950423dce5810643",
    "signature": "0xa29382ceaaaf2de8a3abdab4ce815144d706fb37383ce159cd2e335166223d5b1a72a415fd50b7d8878e0e01226cc31cc01d0d63814a54df3ca4711707f2f2bc1b",
    "signer": "0x6D7f9B90BAFd6B52f8d961a1106d927aCCE656C7",
    "userId": "94304"
  }
}