UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cZzUbwECOevnfx00aaG12yvLFnNeePLs+bVPWjeiA/s=' 
WHERE 
  key_id = '5887643fad893cd51c3634c61247772e2b30f59ccfc57ece707dfb52eec27451' 
  AND (
    token = 'cZzUbwECOevnfx00aaG12yvLFnNeePLs+bVPWjeiA/s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )