UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yk0q/5Qs8/1fPxmfYGzZ+E91tS7U9Dlg3PN+1yLb9ek=' 
WHERE 
  key_id = '18ab0ec76f66b475c4503373a5a0e83079a3b733ccb303d6d01625cb21a361c5' 
  AND (
    token = 'yk0q/5Qs8/1fPxmfYGzZ+E91tS7U9Dlg3PN+1yLb9ek=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )