UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QmmR7LGP1xrWeQhdoA0BApDI1tkdWJ4TSEdgCxEy+to=' 
WHERE 
  key_id = 'a0b7e27b64e8932448168e14bc2fb8acd1ea89eaa4365cf245a9f7b89c661f79' 
  AND (
    token = 'QmmR7LGP1xrWeQhdoA0BApDI1tkdWJ4TSEdgCxEy+to=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )