{
  "manageEntity": {
    "action": "Save",
    "entityId": "396724749",
    "entityType": "Track",
    "nonce": "0xb95c6f224628c76735208d858290cc7b986767be721b0ddcdc40c41e6f8e93c6",
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    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
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  }
}