{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52ca8bf8af1dde19511bfaa4c07693a639cf72d62d3f49c9084c5aacab21edee",
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    "signer": "0x78a51DDbf8B27E25919C8349a84Ba0657E8C7d52",
    "userId": "837318079"
  }
}