Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00289b8dd00fe01d037bb0dc890d5b54700196f21d432f73127b8af5c9f3085e' 
  AND token = '8QX5xEN7OFvsPI+8sc8ROGP98C1GjevEKnoTpInCPJo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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