Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98d25b751e000a2482bab08cd88de8c99a06e97ba2a25046eda9ee9e8d9fd031' 
  AND token = '2Qg0QMzo1zxJ+rHll1p7wIFczGUtezxld/HF2PumIIk=' 
  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"
    }
  }
}