Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89b09551188d25239be3a5a7a722fea326ee4aea1fb13a6ba426a21a5912d27a' 
  AND token = 'MK0wnK3RfPP+F5MT3r2fSN/bx7UQw9XAEXtz393V6fk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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