{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "307",
    "entityType": "User",
    "nonce": "0x82e1b55fd43d32d11454002e42e6334f1659e9346b16f74986d98c61841707e3",
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    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}