SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '0c092ed53906662a86a403f4c498f3157c79b7ed4c95d0f583c2aca9d717de12' 
  AND token = 'yMUpToT4KLwB7nF3XtuOs5dGqi6oLFALjq16+h2bWCU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}