{
  "manageEntity": {
    "action": "Save",
    "entityId": "227524",
    "entityType": "Track",
    "nonce": "0x2faeccfd3d5c4a958d81933f987583148aa5fa83cfb5c4b6c218dcaec9e082b2",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
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  }
}