{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0x3824325b90335c8a6bff0b69d19bee22ed47622b85ce2174a1cb03d1cd5c8938",
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    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}