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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '35162705cc94f1917026226087bf04c8ea13146b851bf6d21554ca4dd36a9bbe' 
  AND token = 'Rpi9sVQb8kkIa2Of6lncgh/TcwhIclT9E0B5mZzqCIY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00087

JSON explain

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