{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x21f9cb9e9f1d1b5f2db2be9b4b7cd4780d41a2b842a920bf05746d0ffc858c09",
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}