Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e13da23d037dc5bd57b445d08c58c7a8686fd949598d781e98956c29c916a494' 
  AND token = 'PBtgt54oD6SDlo+vP4q6TL0dE/iAySY6LjR0CUAf1HM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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