Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98032689091c07023a7d41cfaab27d96152883c7450e73a3d93d6242d71e50db' 
  AND token = 'OqrHCtzEc4TbUJxSkfvVmLk0e9Ev8u7nKT+gT1POZFY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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