UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'samjT6w/e31CAAIGAyAUD5f30URQgJfgwAg3FZMMlHA=' 
WHERE 
  key_id = '49d5e3206ac655b51e435933f25ed5075ec240e538a4f70c555cb078f27b810c' 
  AND (
    token = 'samjT6w/e31CAAIGAyAUD5f30URQgJfgwAg3FZMMlHA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )