{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd9ddd30e6d73addee4a468110d250422969fa76ef6e36ba73c06776e8b1fb1e2",
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    "signer": "0xa85afcEA194e588764eCf462ff153af8c230d084",
    "userId": "317736795"
  }
}