Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5881aad229bf5fc8aa0c49a7fbaced197184a88de88e4e1eab7484b3ab8a966a' 
  AND token = 'okbKudlf6no68KnDkWkv9nHKb0231uw2xQlFrtQgj7M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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