Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8a504b177ac1d9d7ae6889810ec11d5f8077f4a6db032f6e3668ebeba9562008' 
  AND token = 'KTpTJVMjKyH5Hhj+oEq9gpAVL9NMY4h99GYIETtveE0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}