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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44271d2adb8fc51ca8662ef28801891a5183cab4ff7f2d0543700576542c9098' 
  AND token = 'OUHk5Gskgs0jYd1Q8azvuB7JMD4+yl3Qwgi1iI9n5DY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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