{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8ee026c0affc305a8b8704d9aff3b83709e89be9c1fe16a67d0359cf60b3838c",
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}