UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r3WwnjRLPKBXGh+exfPlh1hdZ/b8wvnvmMf4QIyzBow=' 
WHERE 
  key_id = 'd0d756275bce952a450b2c63678797803f9d264783be34c33688c1f603938db5' 
  AND (
    token = 'r3WwnjRLPKBXGh+exfPlh1hdZ/b8wvnvmMf4QIyzBow=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )