{
  "manageEntity": {
    "action": "Delete",
    "entityId": "454306809",
    "entityType": "Track",
    "nonce": "0x92d90a17699c253e673a7c3f0348464d5d559051a66afebd4af2bc8bfd85a246",
    "signature": "0xbeed47f6597e582b7276ff4c224e2dfc0fa70cf92b862a740b003613afca75d31db03f3ec6f7ea2eb5ada27c23caf53e8ea411deca1d407b2c175634a55d652b1c",
    "signer": "0xB1fdb4211728Aa91cA335811E0eAaD06b27686e4",
    "userId": "135129254"
  }
}