INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6526627c2e4f37132a44441f81e6412574e1499013aa333127075320b7e6c9e7', 
    'NSkZdqyHw25C7AJPrAsS3Vc1jZIXvZPySqc8usVVcuQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)