UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gPwrJHQFq2vtCO/+gDnBrL3wlm6jJmZVjeDf154SOug=' 
WHERE 
  key_id = '90b921d0b22883ef0563409a586ba110143036e410196d597e15169d9380a240' 
  AND (
    token = 'gPwrJHQFq2vtCO/+gDnBrL3wlm6jJmZVjeDf154SOug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )