{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1235434399",
    "entityType": "Track",
    "nonce": "0x82a4fe990472d4da6696e1f4ef81c30c9f2ab1c6227086ab5b468597d5d15a1a",
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    "signer": "0x40f9c8F93a5aDBc620CB9B7707fAbcbA2fDFaBbA",
    "userId": "765901034"
  }
}