{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2a523e5129c639eb3bd422a0e0c60b996b7e220b6d3c176405fc6b2b4f96ba51",
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}