{
  "manageEntity": {
    "action": "Delete",
    "entityId": "574442955",
    "entityType": "Track",
    "nonce": "0x19a2c5e7ca486fc801a91d9017c038cd31126e7feb30d4454b109b70aca2e667",
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    "signer": "0x5FD147597f065Cb45F23B07B337fF3858113032D",
    "userId": "326515"
  }
}