Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7480db96106fdff1b3d1fd2e27455156f6b25e541c301bf7f6b8180802cb4dcc' 
  AND token = 'K53ce7Tl15/wOqRCHd02IYoFsN6RpgO0Ipul1z04xAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}