INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4b4fc5decc44251def550c7529aa07e8904a9bf2c68115966977171c38c42f3d', 
    'Q16LnFVsdbDKduu8QszDe9rzr0heg6WMCk7aa0bUldg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)