{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf5177b86d9fe19f9dee40f3dc378691bb21ce0a3d8ea7e09f38cbc602c863503",
    "signature": "0x461ecb8d33c45b3785d6fe43170bdd7ccabdb6d0b640a70c0acf8712c6f8c08e090cf54ef11946c4680ce8e5142ee2a381e0a13421d553e339a3d662e75cca7f1c",
    "signer": "0x0577b87E0CFAD0e2C75D33702E09E6f91a550438",
    "userId": "905593776"
  }
}