{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1575920623",
    "entityType": "Track",
    "nonce": "0x01450ffcb5c283565e0d5cfd3fee685201f420348eee5695ec31de1c37663cb5",
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    "signer": "0x7C81e663e211BDe9320535E5cCa732058275C3cC",
    "userId": "790088610"
  }
}