Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '28abf015f3f8abae3819ab84b0c8a615e0b8d0872e751138511177fcc89d0154' 
  AND token = 'hHSJ8AOo3Oo/966GWVkDYC1alZ9sIjYVxgGn+u+jZaE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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