{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4659dccbe687b0d9086977931035638d9560876d49ca6faa4876c86a14d5ef56",
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    "signer": "0x051EF55B91b6dDda7F6F6c249F82C102cCb7FbB2",
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}