{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x296c4439c073b0adeeae285ec9765254e1826c1e051ac51a237a247b31378637",
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}