Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '075006b385677ecdb17841f2dffd2479e48cead148609eda7b45ae3dde6c30c8' 
  AND token = 'CiTyuu0IFyMPOI0YedU3ZUd7Wvk0QHAqJGJQfx+n3gU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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