UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2YmQij2MTYX5facTRnhMXF23LkugpRGYLBpG4IcCxwY=' 
WHERE 
  key_id = '6188e081d4a5224c2965e65ef18f13138de1cc8512e12213efcb581626a72404' 
  AND (
    token = '2YmQij2MTYX5facTRnhMXF23LkugpRGYLBpG4IcCxwY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )