UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r2ueNMF1g85KWMO0I2fxD3DX0rPMFa1LEQ6vj9GL+VU=' 
WHERE 
  key_id = '7f81cda9fbad9dd9cc74941fa060bf57475515e42ee4548c8a4ddf170fb13cad' 
  AND (
    token = 'r2ueNMF1g85KWMO0I2fxD3DX0rPMFa1LEQ6vj9GL+VU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )