Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '83089e50f00eb842160870a71852986f831a8a7739cf4a81169b1e7603495e95' 
  AND token = 'cOX19xGvWTuk1VxdH1SWH467X6SsvwFXqFuG/ZfJM+c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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