Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '366697988307ae1cedbbccfce5ef21d5d77a45c6085be17b7640cc162423d9f5' 
  AND token = 'aNGT4U7bf9fqSu1Eugios1PnmRJpzUekoCcEBbRHU9M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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