{
  "manageEntity": {
    "action": "Delete",
    "entityId": "448325221",
    "entityType": "Track",
    "nonce": "0x2cdff7a7564edb7fff24189308bc77d25ddca04105f4576cb0ea36aa0c023ec0",
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    "signer": "0x5Bd2B55f9E919abFFCC7853cd54ABf716372E6Fc",
    "userId": "70026"
  }
}