Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '87cffdb3b4f85a264fa622c0860e995eeae6523d6a224bd2818d008cc146348e' 
  AND token = 'Sjah/u5GoKpYXuXVGTE9QkiI2A9VhA8HZYvGiFEKXpE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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