{
  "manageEntity": {
    "action": "Delete",
    "entityId": "300172",
    "entityType": "Track",
    "nonce": "0x2be4a39a4bc7d086a091289717e488ecc93953e8e1da32e58b758509b381e594",
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    "signer": "0xF20dD2c82AA59F74D48B050d0CeccA6285d1F3bE",
    "userId": "7815"
  }
}