Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9806a4c19d87e80746ead1126ff675795aaa8280528e5d6b57eed3746ece77d0' 
  AND token = 'UeqKw2mDVF/g79OX7udPADJV7logw4Qqsku1w+S1vRU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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