INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '55d746c70fe507cf66457a04512d8892bebcf51a2efb6944258f762efc05c656', 
    'JuMfoWv21VsrOazI/4QLiFfOuJDg51bitWqI8NpO2mM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)