{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4364c6a66be03b50c5ceda043d002eca4b0e49553b4333dabc59697a5c9bb929",
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    "signer": "0xa853bC537cd0763A207f2094844A7E736A580760",
    "userId": "198915134"
  }
}