{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5041c5b1ca6c75405b62e4fa9df2d997c1bde5cef5211a736ff1e36802f7c68b",
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    "signer": "0xcaD75E11a32f03A9Df5E6D7DC4745D7Ff5ec81ee",
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}