{
  "manageEntity": {
    "action": "Delete",
    "entityId": "612651382",
    "entityType": "Track",
    "nonce": "0x7357bece4f5a3d0eb42edf53b7963f2e0549aebfe5ba9485b392102b3fe2ee7a",
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    "signer": "0xaFFCd8027993f07b1DBd33E978845b32cb340230",
    "userId": "37943"
  }
}