Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cdd07d432a38bd95471abd53c657bdd4dde8ef08788afb790ed2827a9b80d780' 
  AND token = 'xOi0f67vB5hf8J4PeHmu5Gf6DKgTF6pGJhCmy76Ogx0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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