Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '362207f99b0f9a17db88b34092cf1509a6ef03562b269e83c33896f467a8d22b' 
  AND token = 'bOPgIJO9rjNKYEk9rQLomyFSO7BoJmmPBe2yZtHJpAw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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