{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5aa8507dcc552f486819d698b9b21933358b1aee5bfcb508273c9f12e83f5b6e",
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}