Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2eaa0a599b5cbfbb9fd503b9bba2c0b4ea422b277509f189cb4a10ce8eef82e5' 
  AND token = '5WjZuX+5KpBiF3nIG2R3ox6cbamFmJajERCcVpGszSA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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