UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ikzi+Pm7ZKpamjQ6yFOst2PV2908X4ftCgnxFGuO+GE=' 
WHERE 
  key_id = 'b20c1b5a539f500fc09a8ecb8bbe5e2adc47a4986d3aae5275d83520a3bedafa' 
  AND (
    token = 'ikzi+Pm7ZKpamjQ6yFOst2PV2908X4ftCgnxFGuO+GE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )