Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '128932bb79cb64e3cc4588d349beb921b7de32a167cb52e5ad890575e2fe3155' 
  AND token = 'HnHl33npk1yC/kA8uOUtmhvNvM9APDJR9jQiIHbfSs8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}