{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0x4aae9fd89c6ac55d15d9c52f1b71a8ccbf4b50a25b6f065430231c8cb2c40e6f",
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    "signer": "0x50Fa68E2236737fa15f471F72A9AD1Ea99870D8c",
    "userId": "336906"
  }
}