{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x29193bbe1d0c033d5bace76a0831918e5a039027704191e384bc48789c8bd2eb",
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}