{
  "manageEntity": {
    "action": "Delete",
    "entityId": "450523165",
    "entityType": "Track",
    "nonce": "0x1ae78f632fa82b3027b2a901158b9b60d640e5abcc4c68dcaef8c07f1f6fd48e",
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    "signer": "0x5440c29276C58761A1C9fac1CF686DACF3AF49b0",
    "userId": "734659738"
  }
}