Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '894edc8caddd277d08a9f776555d75f4a285dc32a4a09a892a2b6dfdfa5f0811' 
  AND token = 'QsMnmiAus1aJ2+cMyN6pudesvjSexa3Vc5lOmBmHOkI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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