UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Th3mgxswUO0YJFoTr7ZvBfrNVzkD/nYevOqbPCbNuZI=' 
WHERE 
  key_id = '51f33203e6d2b45d126e204cb49871daaff57cb06bd38ca04429c547c7e4fb3e' 
  AND (
    token = 'Th3mgxswUO0YJFoTr7ZvBfrNVzkD/nYevOqbPCbNuZI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )