Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '202292fbd7f73de6153765f8ca141d7b1f53636760e7ea2eac9cfd4ef700108d' 
  AND token = '7pDERvoSHWtyR3oumfHuaCt2o7Ep9qleUuy6ZZZLYpU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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