UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rZEKfrXxBYXSuSrQLA5Dt4c5k7CFh51iN5GchV2RqdE=' 
WHERE 
  key_id = '55d87bebbeb3b46d98de488fd869e692cc45b873167530db8681673723ea0f28' 
  AND (
    token = 'rZEKfrXxBYXSuSrQLA5Dt4c5k7CFh51iN5GchV2RqdE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )