{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac196c23028df73305678ccebb5d4546420404a65713d87c23807405180d673b",
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    "signer": "0x4a57e2DeD165f5711bbB2bFF6253838BcFee1928",
    "userId": "268361684"
  }
}