Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'febc6a1d07483d2213f54e99581086e1b62e87cf70ea2eea6250830fb7f8e0e8' 
  AND token = 'vvotMZfOV/LMnW6Ar8d//O2GWqaeU8HgU3t9/CB3txM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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