INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51cac71472ad9ae2a42f286335294967eea6bde033ee2652d53ac8f845a5d6bd', 
    'hpWSV8Pdtu/eSji5A862BzOB44hgoGVcCKvOjdgXZJ0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)