Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4871fe3073170108bd9819906193fc79cacdf0aa05d9001f8968616fc9401748' 
  AND token = '0ggR587zlWTUr86IUN6tHQgsd8Sg5h1a9WDBGPFZz2Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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