{
  "manageEntity": {
    "action": "Delete",
    "entityId": "509142810",
    "entityType": "Track",
    "nonce": "0xd7bbb27cd63454963d56cddaa4e18499aab6646b863c8053724890bb0bacb4b2",
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    "signer": "0x6C1EF2E9c33E2ba1c0d352e41e06e8a3C7721C6f",
    "userId": "68375"
  }
}