{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x788f6f3262934f799787dfcf4376bcb73382389aa54ecf23886a2d9694a0cc69",
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    "signer": "0x1aec96de9cb4F2b3f49297164e87635590B1BbdB",
    "userId": "656359487"
  }
}