{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x01d695a615449c674586869975d51f9da892d669aef6d830822c871982d37a2f",
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    "signer": "0x7eE4daFb79211fF2CB92FFa5a0C6fdf8DebA0695",
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}