{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7c0c2d70c91dbc880a84f8b94efdd46a5284089d0d4cef1616fb6e8c10b68c62",
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    "signer": "0x623F4Ef45156b3E09BcfDAA0D7AD20726C314919",
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  }
}