{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x72100d805620c14ab1089642ad80ae9e98180a3b8d16cfbb03aecae56ddafa53",
    "signature": "0xb8e92531249667e97ffea57d581db6b08d41d3dc48ad989593d4c5a9b1fc1fc73669ab59aafc6884e6bfe77b9b14951fded99d372df939663994810d9ea5b22d1c",
    "signer": "0x4599fa15d632f4Ad7DBa46f9bE98593924A6C534",
    "userId": "354005"
  }
}