UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5ZsbCmU5iMGmFYdwMs1z1s3vfanGsh1IRT+TBk4CG+k=' 
WHERE 
  key_id = '51c0b2a3fec27b00822f28c49b69b8399dec58653b397dc66046b6328e1005b2' 
  AND (
    token = '5ZsbCmU5iMGmFYdwMs1z1s3vfanGsh1IRT+TBk4CG+k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )