Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09c871513cdbeb977b6003faa10e681b404ba807f0769fed6ceec3dabbf0a35d' 
  AND token = '9j5Tl20q4IL8awIxq8yd80umrRjHCeHxQE/8tjVCmJc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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