Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '10977d8a4b1c5e4850c9494102eb6a27120ed59550380149d90cbbdab9372774' 
  AND token = '0QPGssHJ5cXXiWSgUVaSZqEwkoyZKP+bobjRjn+lrQw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00060

JSON explain

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