Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2f9b9f56986abb9bd6bfb8f91d2b8dcdbe3422cfa446f80002d4109efe3d8654' 
  AND token = 'dvvLOW1juXPz1tvzjUnxl1Ld10PP/iesU9IBI2hpjQo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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