Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '53c1e5b61872543de3c0037d113b681d4326d1c1de6f5a2f123fae349b781f37' 
  AND token = 'jHXYy2xx4qLUbi6UolOcV20bvnn8kWzY6qcQyFZqg7g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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