INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '421473f6d94c6eb9e67cf218146dd53a400631ab95d2707f4751be6a7e9fded7', 
    'upWkHzIvaUp0sjthaEvMJgs5wc1psYctv991V9gMYrk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00023

Result

int(1)