{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1389539404",
    "entityType": "Track",
    "nonce": "0x404399dcf1e67f6a0995fe1c666b14316344b2047111bfcfdc2443fbabb69dff",
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    "signer": "0x9bAD192e2F0Fd2dfCd24CC1D26fbeC11f6018153",
    "userId": "134214"
  }
}