{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x938ad80b29b75593b860ffc762c6a3ca1e82a3d5b7b3d9aa18340db718d76265",
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    "signer": "0xA7Ef6d48F05c3f8921c08C9E2cc6E28E2E08a554",
    "userId": "497506062"
  }
}