UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'l1kE4eNH0Szd1EVIb2wndSzEQ8WCJcZTGPTBMMtSOak=' 
WHERE 
  key_id = '1c0fb51e7997400d99e01be89d6a2aabbdbe5f4d9c127a473327283345cc2668' 
  AND (
    token = 'l1kE4eNH0Szd1EVIb2wndSzEQ8WCJcZTGPTBMMtSOak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )