UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iLDfr9LdDuUcMDgCE0JYdTOKS85B2q/zbFlJLmRNqns=' 
WHERE 
  key_id = 'b2e8c8df6dd6cacd5d16df875a2aece5f6563c9f78c184f4317a506eb08d167d' 
  AND (
    token = 'iLDfr9LdDuUcMDgCE0JYdTOKS85B2q/zbFlJLmRNqns=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )