Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00c8c91e5131b17e5887a6415ba137d1fd690ac38376b587b214d85ad1125033' 
  AND token = 'GtCXTHMHtdSzq9D2JPYxRlLXtxYLd1TAdKt57S5v2tM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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