Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '88a82dae092c6ac062c3525f9c8280c4fdbd73d65331774d28e2d8d61dd5441c' 
  AND token = 'TTEdnadoTiavI8Ll0/AgBhSxvB5Hm9Z9bQ+o69AR/2g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00080

JSON explain

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