INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21d0892af820737ee799dfeabc91027639fa44cc36874dd40953d4b068ecec56', 
    '/H03nwxGItXrjLhyaZLvvsYwnpJU//CX6oLrt32Meos=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00032

Result

int(1)