Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13387ffd15d1bf27a740ad7000d320fcaa759f9a40c014197a251b6c4b5eb0c8' 
  AND token = 'Gg92aSyQ59mKhWNauEApOIGb/LYPVCfFND4OTb2X6UM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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