{
  "manageEntity": {
    "action": "Delete",
    "entityId": "488700000",
    "entityType": "Track",
    "nonce": "0x9eae82b5d01efcf5ff17b9a7492b878c96457d68d56e0c756e79bc0965448d72",
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    "signer": "0xF7Ff21A93e2fD804bf23303760999b125e251EbC",
    "userId": "571769298"
  }
}