{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5cd3b0811bd314d2d235996f0036ccc81816319d4fb1e644f635a73c67890d6b",
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}