Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '24663140e2a532269faef65249c696df677b1ab07d9340f8a60177b03421a247' 
  AND token = '2PHScfM6RbP2f9FkUSymgbmVeZj38RDwniLqXBougXw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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