UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OBdmIW71tGOp+3CGcpHq3luacDTpRJnqfKWdh5siSHM=' 
WHERE 
  key_id = '20af75cb9e15286721997aafa09358b24aff72da1073233490476d1a6224b323' 
  AND (
    token = 'OBdmIW71tGOp+3CGcpHq3luacDTpRJnqfKWdh5siSHM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )