Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a295dacb09df5bf84552095a677b816e965fbf3527a38488e5fa1b371be029ed' 
  AND token = 'A6nk6PBjdgVjXVjNYPoawcWr0CwbyR6wHyxeTjwh47s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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