Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64361e3c299bbeb36fda40e9074789624954871630ae670babe83b5c285d3bb5' 
  AND token = 'JS0bksah5fqK3uUl4iLDV8fkJO4ofv24O4nnWO1qRQQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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