Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '411a9d6455d9b120c12dcdca8a76e7ffed9940b246521d990ea13dfff9ad3527' 
  AND token = '6sqi5C8yUy2JKh8COy1PseV/Z0l7q/cctbwFjdxwMxg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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