UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MNgbBwi7C5cvDMvNA8dQbCW1+No/tCiWm8YodPj7RJs=' 
WHERE 
  key_id = 'fb51e2c327fa82b297811366017cf1237f02517342455529440a75221393b1d0' 
  AND (
    token = 'MNgbBwi7C5cvDMvNA8dQbCW1+No/tCiWm8YodPj7RJs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )