Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d5a5d6c25d2dac651e6a7c8e956fa7e85ff041ceaf84a063c2405a93dad007d' 
  AND token = 't/rEuMjKWx3p0vR/MaMvXnSFqWz9XomALpIe5YZD/sU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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