INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '56702973e306a225020668db9e76d686548dd6571839bf1a1a5d434f75015d6a', 
    'rnjledER9SSpxtZEQJaZiz2ZDw3KPCJsjSD3TPkM2Do=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00035

Result

int(1)