UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2v83Mcm50uV481BSwx1uPt/vmkPFmeb1iJojplBuA60=' 
WHERE 
  key_id = '6fb5b7f98761647639408d34b5299e784174d5cf635317fa5965bb3318b668b4' 
  AND (
    token = '2v83Mcm50uV481BSwx1uPt/vmkPFmeb1iJojplBuA60=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00017