{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd9c21172ad4e9e746ec07aad06fc7c8661150c18f0e834577c53b50774867e60",
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    "signer": "0x5007B4863811fA571bd44A92B7080Be4B2CF0911",
    "userId": "340151565"
  }
}