Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80be15ff096cfe241c71ec31f8586b1e5151ac0bc7ba21540d1659745461195c' 
  AND token = 'uMqYlmAMkA6I6YhLJP2kEfuI8ELwUW5idnRwgPvHJE4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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