Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a7ceebe6dedda25af1986ad3fdbb9b4b5f8d10a5d69f37ba5b1e36ac3dc7b29f' 
  AND token = 'eenrDfgNrWEyWmST6PIp6p6vEZmRxP/HmrFboJo5vuw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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