INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21c0f34a22f831dd0be5d41485724d547207d3398627ee20a9e83091aa55cb44', 
    'mB09zdb02aNpDhNTdhnC8D6KHzHnRtEv3OomnQumq+k=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00054

Result

int(1)