Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ee71d52c43066799b2051f0e15aeb2b51373cec505074971833533e528bc047' 
  AND token = 'V7XEq+1PD10xQl9HaiD/0TC/XadK1F6DAb9f9dKs84c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00111

JSON explain

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