Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '412e3f79992c962c602e5a23325d6ac02713d0ac4eae68c1bbbe6614166df821' 
  AND token = 'xGijI3/kFJS2SS4DtShg8dQAI2kaqnK8yiJNTRi9ZPw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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