Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '27f742b6385300aefb4ec3846550878754e2837a1877436fc29e1ddb6bbd43ca' 
  AND token = 'FD2A0F+rdB8O8NbkNuIKioe/PPF0DiWVR3duX9jX+Sw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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