{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x11f0a1c2dc80143e11bd6621ebd0f50f8b51586864d1a31ba40f5a3f8dc23307",
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    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
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  }
}