INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6ff89e16bc377e35dcaffe1e136bfe5686b8abb9977696d0993843d2c9b375be', 
    'lFUrJeJtYtLvjma5HhrXmZ6I0oZljnJR9kJAIeU9U6c=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)