INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '55ca4ebd49bffbc4be158dedb64765d7c0b1f2afe871940a7e79a0c271e4515a', 
    'LDW5sxiD/DQKJeN2lfSnTWbHVwEq0yqhUvAupglH//E=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00052

Result

int(1)