Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b481a364eb173b44812716ecda48233449e97e4596656d719c581fcba9fdc633' 
  AND token = 'qbWoeqxDfNwnwncym2PzGylbv14kMd5Tr5g/uo/GQRE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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