{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032909",
    "entityType": "Track",
    "nonce": "0x57c28da04fc32fb200ed62183ee07c43ba2352d17d5ea244bf6b4dc49045259f",
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    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
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  }
}