{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x10dd4b85c12e148e6813a8a656b0fcd59077aa9a795e981358af440f5d53fea3",
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    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}