Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d269f8ec5b53dd50af2748b2695e60285fce17e2eb5ad2072147df1de0e885e' 
  AND token = 'kOHaF5F7XuaOziHKvxIPmElQiM7UYuf4RsphPeXM+aA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00063

JSON explain

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