INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21b4dc49e6a9fd82fa1b045f17129c54504a41965e6c5c0be749a235d70d955f', 
    'HVLwya++OhASy9zBVfnYI4JCYDuEBCFyC4Sgj25ZVm4=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)