{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x10cfe93ac5c7395239deb8b4df423f726ecc82e0df7685540bdde7cb7d98bc01",
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    "signer": "0x94Ef4Ca6B42df59314596255cAC79cCC205633bD",
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  }
}