{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1564790457",
    "entityType": "Track",
    "nonce": "0x1d7d3f736159ddf4e9b51d5588d13ef1ce4b51676c719910bc47ba4b1a687b99",
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    "signer": "0xfd5EE56eda30ffd18A7A4A54B9667aE09728544e",
    "userId": "377943659"
  }
}