{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4c7ae8e911e2debb9463b00f499b8c5798ff15ead533609bf962f9d78b304573",
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    "userId": "761845704"
  }
}