Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77fd6d43cd46547281566f7357eb0e17fbce1123e8144c1e2da9aba827e9fdb4' 
  AND token = 'Awyl1dOJWEA4N5nL10wwunnGi4ue9O5i7R1WmmmqahQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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