Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '69745cbd18ba07224c67d972ffac1ba406641658076c04bc63aa9c0b4bfc750f' 
  AND token = '8cgEdlXUDXnkbMxm+7b3veKs6emTXiqWOewJsox7ZqQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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