Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bde4ad5cc74901cb73ca53fb36ab777f778a246078631bf4935674eb9575616e' 
  AND token = 'F2UB6CrY9m6sUBUd6zKZchh6XVnmb3UYff9IYHFCvc4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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