Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0ea511c5b9a834ffc3ceddc5c77811a8e20a3382649f88e8c8eb1801b2eaff03' 
  AND token = 'BHm80h4t6fGNlikEFgdGJuCaEsOZQFYvo3cHlqkmZTU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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