{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x06920beb78cf333f581a765aa87213c0af118917c4d2b32babdf144721d02b35",
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    "signer": "0x3116461C509484705cE6DE4646588F6F92ed378E",
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  }
}