{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x22fcc057dd1078fd2bb1b527ff654b4263fee1d5acf6bc162349e0ab3dc3ed98",
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    "signer": "0xd7A2c48c0b77Bc59E16EEed2794a84fE292b6470",
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  }
}