{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c69a14348ed7efc37ae21cb793cd1d58c30992128a858bd3a7b3cb2e993480c",
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    "signer": "0x30572904F7B2dac7C9abbe5216f5Eb6D632Eb89D",
    "userId": "789393623"
  }
}