UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M5UTSzoOFAEzt0rKi0WBScjfHFKUX7vWqEZERM6irvs=' 
WHERE 
  key_id = 'b1ac0a20b7271a849283d814d2de5d5b7dc2c8f2e3f0e098820a47fe1106fc26' 
  AND (
    token = 'M5UTSzoOFAEzt0rKi0WBScjfHFKUX7vWqEZERM6irvs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )