{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf30fcd71a24e68305f5eedb9df6be97ef1403ee7733ffd537a4bc33a3866b01c",
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    "signer": "0xEA4aDea63f68Bba559cdae2868a10a7886118830",
    "userId": "392757634"
  }
}