{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x49ae1cf8fe1e1aa1c41e4dd61d9d9ea9a5161b15f6bec502064af11bf6fbe5c0",
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    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
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}