{
  "manageEntity": {
    "action": "Delete",
    "entityId": "255575562",
    "entityType": "Track",
    "nonce": "0x0da42b79e7dc3d916f393a5ad462e6da69bb082868e2f7b3bade673f08b86e5a",
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    "signer": "0x98F4295af45c93F3802F70FC0811654a74df1e73",
    "userId": "715160400"
  }
}