INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '521d7527afb8148229b40d84611d8a9ce0c219a99e81b606e827762c5533dce6', 
    'EbPdRI1Rg1BaUcVQWguQ8/DbXgDzUqF86B3PZQuRWJ4=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)