INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b8787ece48010af19b0bc4393de7e53ffb1e01025dc601823a4b5780b9ceb90a', 
    'LC9lQkcYZj0hQsd0icbn7awx7Wc72wgSs0veBw7zG/o=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)