{
  "manageEntity": {
    "action": "Delete",
    "entityId": "657406",
    "entityType": "Track",
    "nonce": "0x0baa19dc6152ff644f1f73edbf1537c9e6b6b2dc7905ce8a40f8f3e94395e2ef",
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    "signer": "0x5957c34011bed9D75E94CC7A0Db50fC93b787F5B",
    "userId": "334946"
  }
}