Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e01cd275fdf16835c801a2d088fa7d54daf97b045a1c8409dff513be5c1c08ac' 
  AND token = 'n9B5CrzR1XxYID0tMQgjjiQ8QlpYNjRqy7dUtcxpZiA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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