{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc1437dfe40e355e2f840f12d9510713f7e6b7db6f1cdf850ffcbc4b5d2b6fbae",
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    "signer": "0xeAe1E119Cd1A36C002C5B570D85BFaCC919d0e8b",
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  }
}