Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8aeeae95eb9a1c6aa05150256b83b2d042152a4399c1ef52ce9e3177a6d25521' 
  AND token = 'OR561s3iihAigJ8dXAp2do1sboSEuapI8HkJEGYJSfw=' 
  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"
    }
  }
}