{
  "manageEntity": {
    "action": "Delete",
    "entityId": "899702616",
    "entityType": "Track",
    "nonce": "0x39e9a819d81d1d67104c4c989484091ca19110cee65bf862dfc90e1df2d8133a",
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    "signer": "0x3a5239D9549EA3Cd62C3e490723c0ABf859a56e8",
    "userId": "453364147"
  }
}