{
  "manageEntity": {
    "action": "Save",
    "entityId": "1112361554",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x50905622b350c53d8035c1137bf5f229f314e4c3a24513c1abccdd855215062f",
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    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}