UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '53kB/Lb3FTVE93i1dmbQp9cqYbsbHMF5jOwhDNvrpe4=' 
WHERE 
  key_id = '65f6644ffd5bee547edbc8afe10ffdabbbb2f0408774a4ca042701a93ec6d5ef' 
  AND (
    token = '53kB/Lb3FTVE93i1dmbQp9cqYbsbHMF5jOwhDNvrpe4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00056