{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x77d4ac7439ee6a869ece8a77b1aba488bda240bf095f6419a4c659d7016ede00",
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}