Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96fa5b5646a4a4fee6d12770fe2ed84c668227f62da8b4c4343e1ba07483d08d' 
  AND token = 'UhQrjxabzstTLx0pTeOCDXh9a4SwJynx5RFbvuirBac=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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