{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x430ee2c107a27934ce7102ea908b69a90d9b4c508fa931d3e3f2d072ad5b8419",
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    "signer": "0xCaFbadfD1CD8f17092A6d143391eA3E2C0234C58",
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  }
}