UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6fHEcM+oOWWpmumRViP5ledXi8ysVWjgRB4RhQ2lKs0=' 
WHERE 
  key_id = 'a734c418adaaace842cf7e7d321b9063b0ebc34eb71eba9816c515f55a0e7f87' 
  AND (
    token = '6fHEcM+oOWWpmumRViP5ledXi8ysVWjgRB4RhQ2lKs0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )