UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'byqRclS3c782byk1pvXQh4vAlpb+62PX10yD5QpeMDE=' 
WHERE 
  key_id = 'b8488604057b990dff92a0e1342a4420c37a1f30d7b6bf2de0fd8a4909caec68' 
  AND (
    token = 'byqRclS3c782byk1pvXQh4vAlpb+62PX10yD5QpeMDE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )