{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xce0d52b2012e00662d02f76a0d506d3214a4bdb71a24c7cd64524b200432d0a8",
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    "signer": "0xCFAd6E193e3d4A3A3243FE7D3a1c7F638f121Ae4",
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}