Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd70a1d33beb159f054ebb9293398baaa5d292605c3417b005e25bdaea8f9531b' 
  AND token = 'BMD3xN07lH7pPoqj5DALXasjrTyKwh250u1j+6VMyIA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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