{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5e32c7344cc859c3c55661b7c189bb544d30f0f136469caecae526425299a534",
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}