Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd8f3045026334c166f5589d053a5d0917ad8aa6654161d005e777cd98a3e8b80' 
  AND token = 'bLiZeGCiyycwO9/4vx/6nysIWXPbnFIYa4GttvrpRHc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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