{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x16d25a447f42f99c9b57954cc27f547e377c7a358f6cab79597d2fab8e3dbfe5",
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    "signer": "0x7b5216D134ff2da4B5Fd69Cc70Ccc2bFb8a52b32",
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  }
}