{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa3a41fb49f17dcdd979ab4a6f64c7d91439c7ae95bf0073dc489ff158296863a",
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    "signer": "0x9f9a10F710a7ac3dC3eA820283C9a0B2587CF4AC",
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  }
}