{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x354863d203d37318ae1c8bb999cec3ee104ec4371cf5dd60d5d2651c40b5f779",
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    "signer": "0xcB67b82C6c4F3c3077eADFCf5Cb3b7c94beC7766",
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}