{
  "manageEntity": {
    "action": "Delete",
    "entityId": "484016723",
    "entityType": "Track",
    "nonce": "0x1f872390a248457dc2abc72598db24afacb133b94ab1e681cabab5c527a4ea4b",
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    "signer": "0x16b438D7dfC1de534530231462EB0B437827490d",
    "userId": "247477413"
  }
}