{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa91f4e2f553bf93da2a67eaaddb096bfaaedacf80a5aa6b19877202d99b7ebe0",
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    "signer": "0x3CbD0Fa44F7D10274036F2727a02f54a8C26eCE6",
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  }
}