Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bf135450e83ddfcdf97e27607d12d72e42b3740f34121c0f6f06e0e0cf9a38c4' 
  AND token = '9ImLAuNdNe4ITfekQqeZlXDRa+rKT6gS7zqI085oPgU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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