{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7c1ffbb825169089b109daf9419c5e5df9635d15c160ff4c9a8c0a4b57baf7a8",
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    "signer": "0x918763385B46E1a22236838DA41622bAE8282Df0",
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}