Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '40dde584b173b06984853bba95c7e7eb5b89acca1481b3fda9866b20e24382f7' 
  AND token = 'H7pyh+4ih1LhB9dChZZtI5Roy12riMvK7Mu04Ba8rFw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}