{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5b7fd3cdc5e3f251006235b93ea3fbb7fd8345f6e6e63d30ddd1e55dc3b98dfe",
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}