UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CLyssRl9d81zLSN6ChtPeNaxv0Wa8l+dEaEBKVx9nz4=' 
WHERE 
  key_id = '5d37f0b3e4919871f41812397a8429580870813e268038e07f3e4e2a1c781f2a' 
  AND (
    token = 'CLyssRl9d81zLSN6ChtPeNaxv0Wa8l+dEaEBKVx9nz4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00035