{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x286e1d90ee77f8a548021dfafa2f608706fc56cdb06d0b83eaf62b44eef3ae4f",
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    "signer": "0x4B31e50D7434DEfaaa0b24c5e862af503bACA6b9",
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  }
}