SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'e8d301d0b6c42e415d4ec9bae7e8470681a1d839074f7215766f14bb25e0e9e9' 
  AND token = 'PTh0BRgL5jBZ/Xp+l9gLyoA8nVgiYmaXKz1phnorOIA=' 
  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"
    }
  }
}