Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58ed7f20812384cd610724c1d38ef9cab9e348bd2da0023b902f6e638dce5614' 
  AND token = 'iJyWoZWdEl2kmKPuzwXcWzrJmKeb2nwkPdxnDFXl+w0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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