{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "778507",
    "entityType": "User",
    "nonce": "0x7824c556bc67740bd2acd2b03a4ee7d57db5fe47899f39ddd7bb95bc68ea7ecc",
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    "signer": "0xE534A1ad2e8E1f616866185D1efDf463B0eD38b4",
    "userId": "353625"
  }
}