Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1b895f1bc8197b95ac0dc866595c400614ad6c418cb6165b09eb0b13d52c32d3' 
  AND token = '+4GEaJVbvwq4j8uKkXIisRstFoSU6ArJZJ+9gMH9T1U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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