{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd2ee127ce7c628368dca2df325fdef0f262a3f46c25994f4a770c2800d6e1935",
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    "signer": "0x3296Bd48491c2e85014D3211d320F74CfEf3599D",
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}