UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Io1E0/MichmBn+2l0g+1o08wYVrdKk+fq1qfoR3lKPY=' 
WHERE 
  key_id = '12c35f2ef13c05042c333e9f1d4af5230f366b1b1e8f0b96d81fe40896296004' 
  AND (
    token = 'Io1E0/MichmBn+2l0g+1o08wYVrdKk+fq1qfoR3lKPY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )