{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x615d51aa02424a3abc4df30e8be5758b88ce7d8d2b0426384d0b6fad240b7efa",
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    "signer": "0x595660d1DeD5F240099A44bA7DF765b7a1B974c3",
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  }
}