INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6c471b49ce75128a50009805434dcdb1d82937e5ca199dccbba8341d98c9e15c', 
    'z0tkOptZh4T8rvie330js35axjHi2mMlxz9sG6n3Kr4=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)