UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pwYnnJIKgv0Nm13d3GknIMThgEyHcUa1S0FC7iBoiWE=' 
WHERE 
  key_id = '51a062972d2681ce64b4dce5982b476976ae196efdb0e51dbf103351acb32f8c' 
  AND (
    token = 'pwYnnJIKgv0Nm13d3GknIMThgEyHcUa1S0FC7iBoiWE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )