Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9bac5ca557b084c138dbed051129a02dd58cc6a3c3f1ce0190fc488cde1e1b5f' 
  AND token = 'ds41xbGynionaCH7GISjAm/go/iuf299n9/DH6aNXv4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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