Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c5fd177628556cf24ce5e60f8dcee832d709f8ec29338946699473c8e928cf0a' 
  AND token = '+NqWZ/y9WA7qnomeoDqpu/5yzbw5SQJxfRG/1lxyPu0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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