UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RK0VBKrQfXNZbLRQN81nIWRO/S4A+vigaFwZCINepbc=' 
WHERE 
  key_id = '50e15ec6c07411e4c337a9c33bb2965528c93f1a3f15ae40011ca2a75adca9d0' 
  AND (
    token = 'RK0VBKrQfXNZbLRQN81nIWRO/S4A+vigaFwZCINepbc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )