Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'deabdb958a690c20f6ae8487696c8db2734c153ea61aabfb36ad3efb134ea259' 
  AND token = 'eDDdiCJSYsL4I5RP6mDuFeM+H3stuA4cfIcDQ59sePo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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