Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08f4701b52f3dbc35bc74f57e4dd3f410ac82da61414ad20fb66ff9d187a8f72' 
  AND token = 'wbfC0CXbZO8qTKam4fS6yQp7D8r6h2tyfJSJbU58ju0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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