{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbdd5cb97b56c76a99c969e371d4c88c5ac432599d8ce51eef7b5bfdbccdd9e13",
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}