INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '968a9b877f52c27836556f92d09d6ada61c6dc249c4f6abd3c1b9d592a327fef', 
    '21cZ3NhwoEO1k5WBjktg08tAUwuG1rmyjhndYb5JsXk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00037

Result

int(1)