Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f671f29375f590ef5e74b633ff330d3f60d605d592ac111f51531a4097db6bda' 
  AND token = 'bDxidANxJJHt7NdBzcYKJlNBtJ8uGMS5HM/2Ye2BzhE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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