INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51519ad9754ed060fa790f83cd6e7ff23a46badda13c3df8eabc65f6559e4a20', 
    '+0LRnD0+dkYADvYbuSddMaJGsJdSKg3HJgQ02cmqvDs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)