{
  "manageEntity": {
    "action": "Delete",
    "entityId": "977890",
    "entityType": "Track",
    "nonce": "0x8529da3e578ff22d7a96a2e3fb60ffb6cf7ce519fdde48683fd8f8d41acdf6bd",
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    "signer": "0xeaB5bA915CD70ea5eE28B718C5b7315ae94Fa9D6",
    "userId": "109957"
  }
}