{
  "manageEntity": {
    "action": "Delete",
    "entityId": "455306",
    "entityType": "Track",
    "nonce": "0x7995da7c38277ae305a05cf7a8c5ee79b4216038363335301e228dbe0a7dbb54",
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    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}