Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '45a31f1bf91a77ea200abfe5cfdeeb888500e3801db6ea3243a0ca5e99aedb7a' 
  AND token = 'eZi2u8bOb+sC786AVdTE1g5S77YAqQn4cXnvReBscFI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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