{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x77c61642bf6abcf3b1dcf7052ca856b25f2d9e56441f4381234c411012cf2580",
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    "signer": "0x69163Aed5B32EC7f6C8a1e4aDEd7fD7E298F9521",
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  }
}