INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '852fbda1a4fdcd5f757360ac07ab144f2bc3ee3ff360fea3c13b935aee73d08f', 
    'ELjUtwBcg0oSSj6QkfhK6QQiu+d25sN4hQ3AgVf+STU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)