UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MUgdHa26yfTm9BpWViRLjgmOcLHkPIt/P7nAzSDHb6E=' 
WHERE 
  key_id = '93a618f3a38bdcb1dc7c22ad8a94567c1c9f833410f2edb4f93184a7dac34962' 
  AND (
    token = 'MUgdHa26yfTm9BpWViRLjgmOcLHkPIt/P7nAzSDHb6E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )