Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cf8a5c299abb98da6a46276faeaf647d63dcc857c749cfad7926928c2bb9ecfa' 
  AND token = '7HHy2d/PMYp/YgjqHS44j4iM7JHvkGDV3AKzestxbFE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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