Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'de349b6d7392778d15722866434046f16adef2a3f0204eb166f30652fa2f68ee' 
  AND token = 'VEiNqaLERKV7ULt/oLxwPB3UCvySY0mo8F7HQeY2Ees=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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