{
  "manageEntity": {
    "action": "Save",
    "entityId": "1260625111",
    "entityType": "Track",
    "nonce": "0x3b50862096641e5c17d0d029ea2240dede5e257fbfec6e0400b039fa9f94647d",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
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  }
}