{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8d04cf0616b8a571e9264ddbb8e2c1cee962923f7da77ce90087eef347232598",
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    "signer": "0xde8Eae368d980fEa787615994540039EddC2FC89",
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}