Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'e177f6deaa3debda6a3e181008f4f1d52c601434d0b9726d2b607a02cef71a08' 
  AND token = 'ars97eKm+YbLArjIJGVTb8d/I5w8LlJQVeLloGAnvMk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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