UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gZ1/C80gxOKQummCAfJIz1PFqij4RHdr5G0D44VXWWg=' 
WHERE 
  key_id = '951359b8c5ec00838c4afa846cdfda681874c71b048636dbd6630e8f9e783b8b' 
  AND (
    token = 'gZ1/C80gxOKQummCAfJIz1PFqij4RHdr5G0D44VXWWg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )