INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '303e37256832067d07190145e75a1640cc0a2deb32d3df61f340dcc3d0fd13fa', 
    'nU4EPpcGXOZG5UHKgikJ18RnuKkSLcjSeqgA794/PdE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)