{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x052807c0882da384670b7958e63557001d1eccee8adddb38eaf7316bbdd603b5",
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    "signer": "0xb30e0Be35a597525E799dEf874bA634D3870DF3F",
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}