{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xeb3c1da925eef442d91bc11f5184106e6181c109af8ea16c4481893a37fd8e94",
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    "signer": "0x6F3aE43BB2df53A1aCA47FBD0F3DBC879eC87cc0",
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}