UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6A1a5ONHAPjYywo7bt6FEuUcyVulBA6C/Z+imXjrn38=' 
WHERE 
  key_id = '93608c6b43fb91f3fada83cfd986275716e8f1a992e8ab7f89f60a640967e69c' 
  AND (
    token = '6A1a5ONHAPjYywo7bt6FEuUcyVulBA6C/Z+imXjrn38=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )