{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x71eae2a2f01dcc143753e5557053895a2ed2750b8309fd8b7af57c150b8d5eae",
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    "signer": "0x484b6008552259Ac030B89546889ce379b24225c",
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}