UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u6mqyMBihWplxL0saw75/OZY3tms5KV1ssANu8dUag8=' 
WHERE 
  key_id = '8245b1c4cd89f7c64b39cd056481b9197974de74133f91e4aa0907fd9be99309' 
  AND (
    token = 'u6mqyMBihWplxL0saw75/OZY3tms5KV1ssANu8dUag8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )