Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05457a23b87a08ac622121504111a113139ba6e5188cd735e452e592500905e1' 
  AND token = 'sqx/xjdFl0E7DhCkc0tGRhyWl1Q651HiVkttpkFgHeM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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