{
  "manageEntity": {
    "action": "Save",
    "entityId": "274806370",
    "entityType": "Track",
    "nonce": "0xc0cacdea6d30b2885b5321a5275a4edf842e1e0cf73278b4e8a73c50c9178715",
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    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
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  }
}