{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1564790457",
    "entityType": "Track",
    "nonce": "0xe4dceb00f7e5c41fa935ccd0ca841a72b5d2490c2f7c0ca5f1ff719738b4864a",
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    "signer": "0xfd5EE56eda30ffd18A7A4A54B9667aE09728544e",
    "userId": "377943659"
  }
}