UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R5ZVun68z3WbcdEveWqzj4NrQztU/FkZzjO/N4KnuZE=' 
WHERE 
  key_id = '6c98401f0e3115efe29aef82f38b56ec9736fd5995e10d51e3f0e714e59314bd' 
  AND (
    token = 'R5ZVun68z3WbcdEveWqzj4NrQztU/FkZzjO/N4KnuZE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )