{
  "manageEntity": {
    "action": "Delete",
    "entityId": "766543454",
    "entityType": "Track",
    "nonce": "0x9ad11398654e136c370e25f67bfb32d21e020f71f689cc9e9ef24f3595106292",
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    "signer": "0x51C747e7437C025eb47a63843f019C0ff2253474",
    "userId": "41804"
  }
}