UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '71EUuF+LE+LOE8j5ZCgKHnxeQP4NPIDefdDaNpUikLY=' 
WHERE 
  key_id = 'b542e3f3fdd81b81311e75903ad314b2eff9fc7605ab6584c8be488a48aba6d7' 
  AND (
    token = '71EUuF+LE+LOE8j5ZCgKHnxeQP4NPIDefdDaNpUikLY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )