Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '987fbdfb656449fd3a67b7fedf7b127b203e1b7a569cfd589efc29a177def784' 
  AND token = '+iOQ2zBAckPjjvxMU1TnPpmDSHQHZ8aOguXcUH+Wic0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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