Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80058730a39add560125fa7e02557e36892b8f093ad4029d497d8d8f734a9138' 
  AND token = 'x6lc+F0zMQlDAMNsXg9xxOzPAaFfQ4sNs3YsGxFZGB0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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