Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '94bcc5143e5e46d8479f64fefdf2097d00267878fe94f3681c8c3ff5864ed5f5' 
  AND token = 'Yq8krjCRic91h7r/wrm3UiV3qvABS8tiq3GlLP3a26Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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