Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5df57aa51c18815d4b3edfaa2ee24ffb4253a3fd77a3eca2eee00150cfd996f9' 
  AND token = 'o8F595vWluVqgwwcFD6AzA8USCKKckH/nC14mlN5WOk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00095

JSON explain

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