{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x14c6682c4b0b174d1fff6b1140b3fe7c02a8156e236723dbdfe12fde4a999e56",
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}