{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd88864d13258e67a1f69df66973e396e92f106ef287e85d57f3c8b7c33ab7fc7",
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    "signer": "0x79B9F0286e1b3d507AB1162730A38E4B681cCe12",
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  }
}