Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08abe809eb53fcfe52080ebaf7be375db2ff4c589d132965a5e2c7ef64aa8e4e' 
  AND token = 'fp0Sg08YKrSo4wHVSoPj9EVgXh2nzzS50wDmmALmRoA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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