{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa6035a47757cdc0b1d2927fcc09b5ed13cecbec062bf56435ddc71c75e827988",
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    "userId": "179352401"
  }
}