Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4154fe6227f4115bff44fad1d21221827a28e4ec8c0cb2f64b0374e0973d5a46' 
  AND token = 'pz6wglBB/yiKP+oRY8lum4/aUGKb4DAHHXrNihix54c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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