{
  "manageEntity": {
    "action": "Delete",
    "entityId": "163191",
    "entityType": "Track",
    "nonce": "0x3784a1b4f70068dfa6819fb5c23ee8fc805485b379abc50851ef1932232b4190",
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    "signer": "0x53554C77469530eDc7a99d2542AE8de433240B1c",
    "userId": "10739"
  }
}