Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'deb0ab443a430a3fee50c4c06172f4d072102815417405b70f9ab22544750432' 
  AND token = '+neOd8vfc44OH4pz2ojZjueF1GZhHWNHqpWcceytkwA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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