{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1d986301cd8af5b6bfb33c2ea66898aa33f505e657e6d92a2ba1d127c047d491",
    "signature": "0xce561544dcca04ed2f846f191e9003b120da7c0aba636a755aa7ceb8f357f0bd6d4cfa4895aff004ff3fedba082c062da96f71c230d1b0c1f4905940b6c7fe1c1c",
    "signer": "0x37F1f4E1C70365AC851e58B726e5DdCb7C49ef30",
    "userId": "752084571"
  }
}