SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '09ee65eb320c17a634f5537494d44db0d8b62c6a51bfda6cc19a3ffd39c823f0' 
  AND token = 'CLOMfUKEJQNkNcARwnDHy5ZA+Jj8SG3zV+W4p66Diog=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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