{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x771c5d25fcf6b03eac1eb9fcd7ef0eae5bc35f3048b1c59348bd8cb85ca45303",
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    "userId": "32072744"
  }
}