SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '59faf989c8733fe5b89d674cf62c2e462c0b4f9dce2545ff9390c0b7f52552b1' 
  AND token = 'jBgXUn+//XT0TtXgbBU2MDd6n++m3Ptb8Wgw/BflmNs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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