{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x01fb13004f8163254ec898842f75feef9834003f0ba2de0d1ae8f7dda1b9a1c3",
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    "signer": "0x0e34D1E515D83E0777859bdA6E5D22168F854302",
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}