{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcc67bac1066e6937f3b4015d9e14455fa8c8663833624ad6f33c10f449e87c5e",
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    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
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  }
}