{
  "manageEntity": {
    "action": "Save",
    "entityId": "840943086",
    "entityType": "Track",
    "nonce": "0x5191cf6c9bb82ed4304651438fdcebe2fd6b6c722cd36d2728571cd7d77f6cbc",
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    "signer": "0x96F25BA81df0482778A947af84C03800CF5f5d64",
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  }
}