{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9d9a5c56bb2fdc817121fea03e0ca47ee1937650fb6af49f7d2cfa5d9101c925",
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    "signer": "0x3e6173ed837ACf94Bd7FC84ef67D28F63beb92cC",
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}