UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'f3MDIMCdfumCkoMBG2B8nGiwyAMIB3qFG6+p2ymtjBc=' 
WHERE 
  key_id = '81fb801681079f76f73d4f182714e327202d143199dd0445ae4211987f40165c' 
  AND (
    token = 'f3MDIMCdfumCkoMBG2B8nGiwyAMIB3qFG6+p2ymtjBc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )