INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '421a911d198443907d98868cc6b15e0bcd9c4e5fa29b66df9025d19696a624a5', 
    'L5LHGd4xVEw3UBMSMtCegpcjpj+RD9QvL3Y8kYgRvZs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00038

Result

int(1)