INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '521509aa61d52bf08c1566b2ce7e50a4beaa22b17b845a5f51667445964193ee', 
    'EHGGx76+AEGtiJiRECZYhnz8J2NIYak8W5dRl+h69VY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)