Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e547c459b388cfbdd9c522e3a22a6fc088b77badcd28d37a59d7714caff5ab36' 
  AND token = 'NiR+GShmo1YsDHGc0IzgooKS/Ac45yLUyBq8H+7FpMk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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