Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '793beeaa1f11dca7bd42fa126af98e94c65d38d27684f6455862ce2123f46d16' 
  AND token = 'jC4N+qjWxhXec/M7keQgTqdekNALfX6Knj02JpS1jnA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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