Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e05e59040c77ed1b0ed45b595895f510443c62a8865ec4c6902e27cb20f8bb5' 
  AND token = 'X1JeCOaa5TJ/hyUFrRgt4GESGj0MSRG05OhGD++NZn4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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