Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fafda3469ca6c2f60d0dc69da59394d67daf2c8009ced20d75c3dc999283a120' 
  AND token = 'W+r0X5WHVA7mys59wH73w4HEnihhNqLH1H2Rj4AC1u8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}