{
  "manageEntity": {
    "action": "Save",
    "entityId": "1196403601",
    "entityType": "Track",
    "nonce": "0x715dcfb1211ce87a54c42b883aca6232af616e92703a45e10d037506d43006a2",
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    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
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  }
}