INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6753593a6c94277fff3a866d11def7810d3328b77eecd46f14508ab4ef3fe0dc', 
    'r//AR/rVzIGRMf7sqq4MmVVa2i4RCKImGA0x0pDDM38=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00018

Result

int(1)