Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63d00cea35690b5bef0b27cd61191379c6bb17a37ea3aeaa9ef3b56b90c86c6b' 
  AND token = 'daY1YmmNQCNrgZQbMAqrF39oOdzrnSzXhzPzilB/AIQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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