Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06eb80fefd1ff57eae993be750fab39e355ece7f997e59cac1fe138b671a2afe' 
  AND token = 'WuMX8H9oxqJwjHP8ZeSD10DzFAF0c8fWMPVzw/ZDpW4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}