{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9532d52efac3a7cd42a2a90721424dcc804c2feb950d6a41832b8b1da199e993",
    "signature": "0xa8b8227e419538e836cad3634a3cac224adbb13ec3b9d796fe5d789f8df1b7d42df0f46827a274ffadbf6dfa4880a2b7d0b4f0c1ca079fa130cb83fbd34d60901b",
    "signer": "0xC853d97AeeE15A1C991532996f88E03317731e30",
    "userId": "449918651"
  }
}