{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x95e6d6e2ecac2df84f3aff56ce191e264ed36c3707d9ee1cdf8896c1a2e7d978",
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}