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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01dda2575f4153fd27c4ca85f4d135d9028d1bcd8c36cedb74f0d83656227777' 
  AND token = 'En/Yv/P8kdQ/s1QjAbu4n8EymKcNCf3ZQTP0AcapciI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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