Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8809159182e81f03e7c8b66db326a4a380afe92624f3c97de1cdd8139f795a93' 
  AND token = 'Yib4LjvgzATsmdMffRa5YsrZTpC5EbtEd7ZiFEjkkUA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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