UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a4nQSjO/tExCGLSB94J2xhXriSMeyjCWfYJid3gN/Uo=' 
WHERE 
  key_id = 'e8a6c05c23d7d0acb2d16c1d993e24cf891c4080d1db23f8f3f068ef96e5dc52' 
  AND (
    token = 'a4nQSjO/tExCGLSB94J2xhXriSMeyjCWfYJid3gN/Uo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )