{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x81674d7f2d018a104aaca5eb2acec36275a99a3631ae712767ed701a3e8d10de",
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    "signer": "0x48c4F1C0d0cbFF1115450a2547577c3B18D8febb",
    "userId": "642037758"
  }
}