{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4e0c92e4d664847f922b13508c065bf1c371f4868b878810ed47f6ca4ab13e20",
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    "signer": "0x1Bd1aB857bd91ca351Cc91d8dCe3644C0B43B6CF",
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  }
}