Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80e70a60705347773acfe27b0f1961cef862467b69dafd5ec91e3fb917979615' 
  AND token = 'mWkjhUpmnky5WKoP8v36V77EnCv5Q1JsJNelhEYpS4Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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