{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa7c21fbbe101e054eabe48d54c3009db524603c1b597fce3fed8ad2656e07c20",
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    "userId": "557719484"
  }
}