Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '084a44a7d9e7c8c40c1b8ecdbe409463e72060b93207046fddf86e02c099a2fe' 
  AND token = 'iA3vg+NuKlBBDaYy2U2SX7f7uQiknukDrgfFQluZIOs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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