{
  "manageEntity": {
    "action": "Delete",
    "entityId": "561065773",
    "entityType": "Track",
    "nonce": "0x77d8c9008cfa866224f8bf2835c3949e5c4e745e675393c49fb79fe8e4087936",
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    "signer": "0xba39E57aa62E649F2b3250E2Cf1456c117127a40",
    "userId": "555663956"
  }
}