Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '638732fd1cfa6446e44de91bdb0f2eb9e0749eb2c59784e71733bed4ca7860be' 
  AND token = 'xLLyszSbOBXg0Owrs1pBNokXwamLLFpmOsl+R2UsAbU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}