UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kGC838yJG3ZSoGSCjr9XvBenPFELZW54o1919ETPpuA=' 
WHERE 
  key_id = 'a0deb29ccbe2325433fdf54987f5f677dee34760183c90c4ef8e4573df4fe46c' 
  AND (
    token = 'kGC838yJG3ZSoGSCjr9XvBenPFELZW54o1919ETPpuA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )