{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4c5b23fcdc9a0ac5e937a23830578c168812232e79f16940db89de84c23dcbd5",
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}