{
  "manageEntity": {
    "action": "Save",
    "entityId": "993152250",
    "entityType": "Track",
    "nonce": "0x480f4e78dff7262bfd2706c955949cf3a087be616c07a637e4a1c8eca1ff7ade",
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    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
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  }
}