UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MRtc3sLDgacmrGtQeppy2ud9YxIam6gBrvlUL1pHIpM=' 
WHERE 
  key_id = '3c2d3df6c67464158f1e07d61f85374e69ebbd9fbe5e3c73a75172c72d6936ae' 
  AND (
    token = 'MRtc3sLDgacmrGtQeppy2ud9YxIam6gBrvlUL1pHIpM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )