UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5T+HnvjDvshUPI9eWKEQaXnqQCqJEe+p+myVPkq71P0=' 
WHERE 
  key_id = '5cc986549f06a295e7750acafaa328c373c50100aafc5931d263c18b5465222e' 
  AND (
    token = '5T+HnvjDvshUPI9eWKEQaXnqQCqJEe+p+myVPkq71P0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )