UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SV8OvL1QDgV9KID9ltyXRO3nMim2JBB3KZv8Sr21Opg=' 
WHERE 
  key_id = '81cf934503abb1ce89108dcd64cea21735fd1f744815e29fe1faa88af1da6826' 
  AND (
    token = 'SV8OvL1QDgV9KID9ltyXRO3nMim2JBB3KZv8Sr21Opg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )