UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'C45ojGUSPMuzmA/c0yRK7R5HxksPfo65QqO3f140nF0=' 
WHERE 
  key_id = 'dff1c422f41dc40d72ced7c35e2d7c9762910ae1acd946d4a39b703afcb3aeea' 
  AND (
    token = 'C45ojGUSPMuzmA/c0yRK7R5HxksPfo65QqO3f140nF0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )