Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e0cb4520dc176df9fbbd380e144100e18955ddd1174c36c2a97e82068b8f928f' 
  AND token = 'y9bK5DPvvdeoZBAwAOl5YjeZ9IVVnu462yLPyQx5fcc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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