Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '24673882f64dbea0865f60410ab583b5242a50feec1df60399f1dde1ed26b0b0' 
  AND token = 'HCCIq0mMo98bl1DkHI+oTaRzvVpM3U8cmXY155FtKM8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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