Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33eff5efa65297ba84ae49cb9cde0bf6f4018e58f88f5b772ffcf48ae62c90a0' 
  AND token = 'oSw6Er7r1Ls7xGyCjvPY525j5FUbKX8Sor9ERZqsBZs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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