UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'Y7T7pIbuKM4R9i2QP1sqBDGA5ejUWAXxPCS9xxEflEs=' 
WHERE 
  key_id = 'b935906a100e513e434abe1bdbb0f43c6e8be06bbab3703b8337bfb079295839' 
  AND (
    token = 'Y7T7pIbuKM4R9i2QP1sqBDGA5ejUWAXxPCS9xxEflEs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )