UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E3gK7lVivn1FI82X0tNKel/mZ4RHBdNwmDr61Sf56BE=' 
WHERE 
  key_id = 'c2ab208c3be423564de8d3e42b54b951731c418f6b6a76a756cf72efe532b520' 
  AND (
    token = 'E3gK7lVivn1FI82X0tNKel/mZ4RHBdNwmDr61Sf56BE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )