Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'feced23f5bc8ce78f364b5f8737dd311a9801dedf66ca814819f717967a98864' 
  AND token = 'wecGJmQk8Y9lctLpQIAtqeJLYO6BtIHeC+tC+C2R0ng=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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