UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sKJb2u6LLKKPy1kNDVgwQSKlK/a1f1FjuOp4ebR8qTo=' 
WHERE 
  key_id = 'a6c5d3e562ab944482cbf37a9a05391806133086d488765cec66b77404de3a30' 
  AND (
    token = 'sKJb2u6LLKKPy1kNDVgwQSKlK/a1f1FjuOp4ebR8qTo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00036