UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zXxxGJu61uwrJFza5QNXtCrUq+XJb+wubj3spjPyrLs=' 
WHERE 
  key_id = '84bdb3c91e1617441cf2aeaf19473b32981124bd90fa0df2c6be1711fbb657d5' 
  AND (
    token = 'zXxxGJu61uwrJFza5QNXtCrUq+XJb+wubj3spjPyrLs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )