Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '87649e928077d67ecfed2dab02922eae78c210195d085f83d39a25aeccbb0052' 
  AND token = 'Tim1VQvXCX2MoP7XaKJCfQ1LXTz8qnQA+o3wVFpaeok=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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