{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x4c699ff81b5fa72e776fe8e7de12841507a97c2964dfa38c9b9e1b0f8d77dc34",
    "signature": "0x563cb71a24adee41487f2c2189bd66c8957062e6f0366e22564c8c5cb03b499e41d93f77f4dac97c5197c34a283dc2f14c7a9381618282691fd5c8545f0930531b",
    "signer": "0x0f6bED2C3819bA95123862caeBBC33E1C0A3511F",
    "userId": "388850"
  }
}