Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f73c27a744aa4187d67c320d6864d24298dc688fb4d06df170e77e54d170de95' 
  AND token = 'pe0LrTHLOTJMPEJxC3IM4V0gKGYItiXQGxWXLeexWZk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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