Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9404c411a55acd8992c86125f64a529b43fa2207d196cbbb2f97471bf63a6dc1' 
  AND token = 'H9G2FReZCELNtCMYxAKNobQt1Q141LKXrn2X1IvrpGA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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