Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '811c0f41405f4ff5b4b90187c8f63cae2954c58030873dab9b14e37e0a05308f' 
  AND token = 'ReS3e1h0460ud8Cx2yXjsUdgyGOfMA64+rqgX37kQ4E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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