{
  "manageEntity": {
    "action": "Delete",
    "entityId": "640666546",
    "entityType": "Track",
    "nonce": "0x78b4db27bc20f070bb3920f4f2f7a84f40f08d49f3e06e9cf9d740564e8e3d86",
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    "signer": "0x98F4295af45c93F3802F70FC0811654a74df1e73",
    "userId": "715160400"
  }
}