{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "645720561",
    "entityType": "User",
    "nonce": "0x91de6bd06e057bbb7ee3eed8729e3210161bf2528f79ad3c082dc03b2f9c153e",
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    "signer": "0x0cA981EBB0E4Aa80eA1e5833e1685eEe6A1B7ba2",
    "userId": "395354603"
  }
}